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Finding the Fourth Proportional to 267,886.74, 401,550.62 and 90,332.70

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Solution

The fourth proportional to 267,886.74, 401,550.62 and 90,332.70 is: 135,404.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,886.74 : 401,550.62 = 90,332.70 : x
  2. Step 2: Convert to fraction form
    267,886.74/401,550.62 = 90,332.70/x
  3. Step 3: Cross multiply
    267,886.74x = 401,550.62 × 90,332.70
  4. Step 4: Simplify right side
    267,886.74x = 36,273,151,691.27
  5. Step 5: Solve for x
    x = 36,273,151,691.27/267,886.74
  6. Step 6: Final answer
    x = 135,404.80

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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.