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Finding the Fourth Proportional to 92,358.92, 138,539.52 and 25,795.04

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Solution

The fourth proportional to 92,358.92, 138,539.52 and 25,795.04 is: 38,692.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,358.92 : 138,539.52 = 25,795.04 : x
  2. Step 2: Convert to fraction form
    92,358.92/138,539.52 = 25,795.04/x
  3. Step 3: Cross multiply
    92,358.92x = 138,539.52 × 25,795.04
  4. Step 4: Simplify right side
    92,358.92x = 3,573,632,459.98
  5. Step 5: Solve for x
    x = 3,573,632,459.98/92,358.92
  6. Step 6: Final answer
    x = 38,692.88

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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.