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Finding the Fourth Proportional to 425,465.01, 587,134.17 and 231,874.50

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Solution

The fourth proportional to 425,465.01, 587,134.17 and 231,874.50 is: 319,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,465.01 : 587,134.17 = 231,874.50 : x
  2. Step 2: Convert to fraction form
    425,465.01/587,134.17 = 231,874.50/x
  3. Step 3: Cross multiply
    425,465.01x = 587,134.17 × 231,874.50
  4. Step 4: Simplify right side
    425,465.01x = 136,141,442,101.67
  5. Step 5: Solve for x
    x = 136,141,442,101.67/425,465.01
  6. Step 6: Final answer
    x = 319,982.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.