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Finding the Fourth Proportional to 82,936,564.80, 124,313,608.80 and 29,056,142.40

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Solution

The fourth proportional to 82,936,564.80, 124,313,608.80 and 29,056,142.40 is: 43,552,248.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,936,564.80 : 124,313,608.80 = 29,056,142.40 : x
  2. Step 2: Convert to fraction form
    82,936,564.80/124,313,608.80 = 29,056,142.40/x
  3. Step 3: Cross multiply
    82,936,564.80x = 124,313,608.80 × 29,056,142.40
  4. Step 4: Simplify right side
    82,936,564.80x = 3,612,073,919,550,693
  5. Step 5: Solve for x
    x = 3,612,073,919,550,693/82,936,564.80
  6. Step 6: Final answer
    x = 43,552,248.98

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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.