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Finding the Fourth Proportional to 61,744.68, 85,211.60 and 37,868.11

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Solution

The fourth proportional to 61,744.68, 85,211.60 and 37,868.11 is: 52,260.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,744.68 : 85,211.60 = 37,868.11 : x
  2. Step 2: Convert to fraction form
    61,744.68/85,211.60 = 37,868.11/x
  3. Step 3: Cross multiply
    61,744.68x = 85,211.60 × 37,868.11
  4. Step 4: Simplify right side
    61,744.68x = 3,226,801,839.71
  5. Step 5: Solve for x
    x = 3,226,801,839.71/61,744.68
  6. Step 6: Final answer
    x = 52,260.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.