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Finding the Fourth Proportional to 83,264.97, 124,938.45 and 38,885.28

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Solution

The fourth proportional to 83,264.97, 124,938.45 and 38,885.28 is: 58,347.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,264.97 : 124,938.45 = 38,885.28 : x
  2. Step 2: Convert to fraction form
    83,264.97/124,938.45 = 38,885.28/x
  3. Step 3: Cross multiply
    83,264.97x = 124,938.45 × 38,885.28
  4. Step 4: Simplify right side
    83,264.97x = 4,858,266,611.02
  5. Step 5: Solve for x
    x = 4,858,266,611.02/83,264.97
  6. Step 6: Final answer
    x = 58,347.06

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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.