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Finding the Fourth Proportional to 92,761.38, 139,149.84 and 29,590.56

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Solution

The fourth proportional to 92,761.38, 139,149.84 and 29,590.56 is: 44,388.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,761.38 : 139,149.84 = 29,590.56 : x
  2. Step 2: Convert to fraction form
    92,761.38/139,149.84 = 29,590.56/x
  3. Step 3: Cross multiply
    92,761.38x = 139,149.84 × 29,590.56
  4. Step 4: Simplify right side
    92,761.38x = 4,117,521,689.51
  5. Step 5: Solve for x
    x = 4,117,521,689.51/92,761.38
  6. Step 6: Final answer
    x = 44,388.32

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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.