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Finding the Fourth Proportional to 61,344.66, 92,017.92 and 40,418.73

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Solution

The fourth proportional to 61,344.66, 92,017.92 and 40,418.73 is: 60,628.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,344.66 : 92,017.92 = 40,418.73 : x
  2. Step 2: Convert to fraction form
    61,344.66/92,017.92 = 40,418.73/x
  3. Step 3: Cross multiply
    61,344.66x = 92,017.92 × 40,418.73
  4. Step 4: Simplify right side
    61,344.66x = 3,719,247,463.64
  5. Step 5: Solve for x
    x = 3,719,247,463.64/61,344.66
  6. Step 6: Final answer
    x = 60,628.71

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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.