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Finding the Fourth Proportional to 92,963.71, 139,445.61 and 61,366.39

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Solution

The fourth proportional to 92,963.71, 139,445.61 and 61,366.39 is: 92,049.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,963.71 : 139,445.61 = 61,366.39 : x
  2. Step 2: Convert to fraction form
    92,963.71/139,445.61 = 61,366.39/x
  3. Step 3: Cross multiply
    92,963.71x = 139,445.61 × 61,366.39
  4. Step 4: Simplify right side
    92,963.71x = 8,557,273,687.05
  5. Step 5: Solve for x
    x = 8,557,273,687.05/92,963.71
  6. Step 6: Final answer
    x = 92,049.61

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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.