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Finding the Fourth Proportional to 83,220.71, 124,798.23 and 35,839.35

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Solution

The fourth proportional to 83,220.71, 124,798.23 and 35,839.35 is: 53,744.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,220.71 : 124,798.23 = 35,839.35 : x
  2. Step 2: Convert to fraction form
    83,220.71/124,798.23 = 35,839.35/x
  3. Step 3: Cross multiply
    83,220.71x = 124,798.23 × 35,839.35
  4. Step 4: Simplify right side
    83,220.71x = 4,472,687,444.35
  5. Step 5: Solve for x
    x = 4,472,687,444.35/83,220.71
  6. Step 6: Final answer
    x = 53,744.89

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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.