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Finding the Fourth Proportional to 92,274.60, 138,404.70 and 36,103.80

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Solution

The fourth proportional to 92,274.60, 138,404.70 and 36,103.80 is: 54,152.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,274.60 : 138,404.70 = 36,103.80 : x
  2. Step 2: Convert to fraction form
    92,274.60/138,404.70 = 36,103.80/x
  3. Step 3: Cross multiply
    92,274.60x = 138,404.70 × 36,103.80
  4. Step 4: Simplify right side
    92,274.60x = 4,996,935,607.86
  5. Step 5: Solve for x
    x = 4,996,935,607.86/92,274.60
  6. Step 6: Final answer
    x = 54,152.88

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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.