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Finding the Fourth Proportional to 291,691.36, 437,546.28 and 92,013.52

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Solution

The fourth proportional to 291,691.36, 437,546.28 and 92,013.52 is: 138,023.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,691.36 : 437,546.28 = 92,013.52 : x
  2. Step 2: Convert to fraction form
    291,691.36/437,546.28 = 92,013.52/x
  3. Step 3: Cross multiply
    291,691.36x = 437,546.28 × 92,013.52
  4. Step 4: Simplify right side
    291,691.36x = 40,260,173,385.71
  5. Step 5: Solve for x
    x = 40,260,173,385.71/291,691.36
  6. Step 6: Final answer
    x = 138,023.19

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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.