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Finding the Fourth Proportional to 61,152,061.60, 91,728,092.40 and 56,475,380.80

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Solution

The fourth proportional to 61,152,061.60, 91,728,092.40 and 56,475,380.80 is: 84,713,071.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,152,061.60 : 91,728,092.40 = 56,475,380.80 : x
  2. Step 2: Convert to fraction form
    61,152,061.60/91,728,092.40 = 56,475,380.80/x
  3. Step 3: Cross multiply
    61,152,061.60x = 91,728,092.40 × 56,475,380.80
  4. Step 4: Simplify right side
    61,152,061.60x = 5,180,378,948,347,586
  5. Step 5: Solve for x
    x = 5,180,378,948,347,586/61,152,061.60
  6. Step 6: Final answer
    x = 84,713,071.20

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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.