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Finding the Fourth Proportional to 92,572.32, 138,764.98 and 36,451.82

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Solution

The fourth proportional to 92,572.32, 138,764.98 and 36,451.82 is: 54,640.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,572.32 : 138,764.98 = 36,451.82 : x
  2. Step 2: Convert to fraction form
    92,572.32/138,764.98 = 36,451.82/x
  3. Step 3: Cross multiply
    92,572.32x = 138,764.98 × 36,451.82
  4. Step 4: Simplify right side
    92,572.32x = 5,058,236,073.26
  5. Step 5: Solve for x
    x = 5,058,236,073.26/92,572.32
  6. Step 6: Final answer
    x = 54,640.91

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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.