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Finding the Fourth Proportional to 92,167.20, 138,250.80 and 64,027.80

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Solution

The fourth proportional to 92,167.20, 138,250.80 and 64,027.80 is: 96,041.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,167.20 : 138,250.80 = 64,027.80 : x
  2. Step 2: Convert to fraction form
    92,167.20/138,250.80 = 64,027.80/x
  3. Step 3: Cross multiply
    92,167.20x = 138,250.80 × 64,027.80
  4. Step 4: Simplify right side
    92,167.20x = 8,851,894,572.24
  5. Step 5: Solve for x
    x = 8,851,894,572.24/92,167.20
  6. Step 6: Final answer
    x = 96,041.70

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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.