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Finding the Fourth Proportional to 373,171.40, 559,425.69 and 145,414.29

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Solution

The fourth proportional to 373,171.40, 559,425.69 and 145,414.29 is: 217,992.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,171.40 : 559,425.69 = 145,414.29 : x
  2. Step 2: Convert to fraction form
    373,171.40/559,425.69 = 145,414.29/x
  3. Step 3: Cross multiply
    373,171.40x = 559,425.69 × 145,414.29
  4. Step 4: Simplify right side
    373,171.40x = 81,348,488,470.19
  5. Step 5: Solve for x
    x = 81,348,488,470.19/373,171.40
  6. Step 6: Final answer
    x = 217,992.29

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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.