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Finding the Fourth Proportional to 391,663.59, 587,536.29 and 167,047.75

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Solution

The fourth proportional to 391,663.59, 587,536.29 and 167,047.75 is: 250,589.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,663.59 : 587,536.29 = 167,047.75 : x
  2. Step 2: Convert to fraction form
    391,663.59/587,536.29 = 167,047.75/x
  3. Step 3: Cross multiply
    391,663.59x = 587,536.29 × 167,047.75
  4. Step 4: Simplify right side
    391,663.59x = 98,146,614,452.61
  5. Step 5: Solve for x
    x = 98,146,614,452.61/391,663.59
  6. Step 6: Final answer
    x = 250,589.07

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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.