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Finding the Fourth Proportional to 92,702.70, 139,044.42 and 62,908.20

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Solution

The fourth proportional to 92,702.70, 139,044.42 and 62,908.20 is: 94,355.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,702.70 : 139,044.42 = 62,908.20 : x
  2. Step 2: Convert to fraction form
    92,702.70/139,044.42 = 62,908.20/x
  3. Step 3: Cross multiply
    92,702.70x = 139,044.42 × 62,908.20
  4. Step 4: Simplify right side
    92,702.70x = 8,747,034,182.24
  5. Step 5: Solve for x
    x = 8,747,034,182.24/92,702.70
  6. Step 6: Final answer
    x = 94,355.77

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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.