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Finding the Fourth Proportional to 262,433,694.60, 393,648,468.30 and 68,344,734.60

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Solution

The fourth proportional to 262,433,694.60, 393,648,468.30 and 68,344,734.60 is: 102,516,561.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,433,694.60 : 393,648,468.30 = 68,344,734.60 : x
  2. Step 2: Convert to fraction form
    262,433,694.60/393,648,468.30 = 68,344,734.60/x
  3. Step 3: Cross multiply
    262,433,694.60x = 393,648,468.30 × 68,344,734.60
  4. Step 4: Simplify right side
    262,433,694.60x = 26,903,800,091,660,012
  5. Step 5: Solve for x
    x = 26,903,800,091,660,012/262,433,694.60
  6. Step 6: Final answer
    x = 102,516,561.88

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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.