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Finding the Fourth Proportional to 81,564,616,672.20, 122,346,925,008.30 and 81,564,616,672.20

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Solution

The fourth proportional to 81,564,616,672.20, 122,346,925,008.30 and 81,564,616,672.20 is: 122,346,925,008.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,564,616,672.20 : 122,346,925,008.30 = 81,564,616,672.20 : x
  2. Step 2: Convert to fraction form
    81,564,616,672.20/122,346,925,008.30 = 81,564,616,672.20/x
  3. Step 3: Cross multiply
    81,564,616,672.20x = 122,346,925,008.30 × 81,564,616,672.20
  4. Step 4: Simplify right side
    81,564,616,672.20x = 9,979,180,039,324,389,343,232
  5. Step 5: Solve for x
    x = 9,979,180,039,324,389,343,232/81,564,616,672.20
  6. Step 6: Final answer
    x = 122,346,925,008.30

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1.5x scale

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.