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Finding the Fourth Proportional to 71,902.08, 107,862.84 and 67,528.08

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Solution

The fourth proportional to 71,902.08, 107,862.84 and 67,528.08 is: 101,301.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,902.08 : 107,862.84 = 67,528.08 : x
  2. Step 2: Convert to fraction form
    71,902.08/107,862.84 = 67,528.08/x
  3. Step 3: Cross multiply
    71,902.08x = 107,862.84 × 67,528.08
  4. Step 4: Simplify right side
    71,902.08x = 7,283,770,488.55
  5. Step 5: Solve for x
    x = 7,283,770,488.55/71,902.08
  6. Step 6: Final answer
    x = 101,301.25

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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.