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Finding the Fourth Proportional to 213,746,808,889.60, 320,620,213,334.40 and 213,746,808,889.60

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Solution

The fourth proportional to 213,746,808,889.60, 320,620,213,334.40 and 213,746,808,889.60 is: 320,620,213,334.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,746,808,889.60 : 320,620,213,334.40 = 213,746,808,889.60 : x
  2. Step 2: Convert to fraction form
    213,746,808,889.60/320,620,213,334.40 = 213,746,808,889.60/x
  3. Step 3: Cross multiply
    213,746,808,889.60x = 320,620,213,334.40 × 213,746,808,889.60
  4. Step 4: Simplify right side
    213,746,808,889.60x = 68,531,547,465,730,783,969,280
  5. Step 5: Solve for x
    x = 68,531,547,465,730,783,969,280/213,746,808,889.60
  6. Step 6: Final answer
    x = 320,620,213,334.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.