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Finding the Fourth Proportional to 69,527,721.20, 97,540,363.60 and 69,527,721.20

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Solution

The fourth proportional to 69,527,721.20, 97,540,363.60 and 69,527,721.20 is: 97,540,363.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,527,721.20 : 97,540,363.60 = 69,527,721.20 : x
  2. Step 2: Convert to fraction form
    69,527,721.20/97,540,363.60 = 69,527,721.20/x
  3. Step 3: Cross multiply
    69,527,721.20x = 97,540,363.60 × 69,527,721.20
  4. Step 4: Simplify right side
    69,527,721.20x = 6,781,759,206,127,428
  5. Step 5: Solve for x
    x = 6,781,759,206,127,428/69,527,721.20
  6. Step 6: Final answer
    x = 97,540,363.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.