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Finding the Fourth Proportional to 92,542.35, 138,870.63 and 36,372.60

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Solution

The fourth proportional to 92,542.35, 138,870.63 and 36,372.60 is: 54,581.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,542.35 : 138,870.63 = 36,372.60 : x
  2. Step 2: Convert to fraction form
    92,542.35/138,870.63 = 36,372.60/x
  3. Step 3: Cross multiply
    92,542.35x = 138,870.63 × 36,372.60
  4. Step 4: Simplify right side
    92,542.35x = 5,051,085,876.74
  5. Step 5: Solve for x
    x = 5,051,085,876.74/92,542.35
  6. Step 6: Final answer
    x = 54,581.34

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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.