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Finding the Fourth Proportional to 92,118.68, 138,177.50 and 25,558.12

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Solution

The fourth proportional to 92,118.68, 138,177.50 and 25,558.12 is: 38,337.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,118.68 : 138,177.50 = 25,558.12 : x
  2. Step 2: Convert to fraction form
    92,118.68/138,177.50 = 25,558.12/x
  3. Step 3: Cross multiply
    92,118.68x = 138,177.50 × 25,558.12
  4. Step 4: Simplify right side
    92,118.68x = 3,531,557,126.30
  5. Step 5: Solve for x
    x = 3,531,557,126.30/92,118.68
  6. Step 6: Final answer
    x = 38,337.04

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Double scale
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1.5x scale

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.