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Finding the Fourth Proportional to 391,703.11, 587,597.02 and 167,087.27

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Solution

The fourth proportional to 391,703.11, 587,597.02 and 167,087.27 is: 250,648.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,703.11 : 587,597.02 = 167,087.27 : x
  2. Step 2: Convert to fraction form
    391,703.11/587,597.02 = 167,087.27/x
  3. Step 3: Cross multiply
    391,703.11x = 587,597.02 × 167,087.27
  4. Step 4: Simplify right side
    391,703.11x = 98,179,982,983.21
  5. Step 5: Solve for x
    x = 98,179,982,983.21/391,703.11
  6. Step 6: Final answer
    x = 250,648.98

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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.