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Finding the Fourth Proportional to 83,652,813.60, 125,479,220.40 and 60,694,562.40

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Solution

The fourth proportional to 83,652,813.60, 125,479,220.40 and 60,694,562.40 is: 91,041,843.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,652,813.60 : 125,479,220.40 = 60,694,562.40 : x
  2. Step 2: Convert to fraction form
    83,652,813.60/125,479,220.40 = 60,694,562.40/x
  3. Step 3: Cross multiply
    83,652,813.60x = 125,479,220.40 × 60,694,562.40
  4. Step 4: Simplify right side
    83,652,813.60x = 7,615,906,372,471,153
  5. Step 5: Solve for x
    x = 7,615,906,372,471,153/83,652,813.60
  6. Step 6: Final answer
    x = 91,041,843.60

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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.