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Finding the Fourth Proportional to 92,579.17, 138,908.87 and 32,650.47

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Solution

The fourth proportional to 92,579.17, 138,908.87 and 32,650.47 is: 48,989.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,579.17 : 138,908.87 = 32,650.47 : x
  2. Step 2: Convert to fraction form
    92,579.17/138,908.87 = 32,650.47/x
  3. Step 3: Cross multiply
    92,579.17x = 138,908.87 × 32,650.47
  4. Step 4: Simplify right side
    92,579.17x = 4,535,439,729.42
  5. Step 5: Solve for x
    x = 4,535,439,729.42/92,579.17
  6. Step 6: Final answer
    x = 48,989.85

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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.