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Finding the Fourth Proportional to 391,663.09, 587,535.54 and 167,047.25

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Solution

The fourth proportional to 391,663.09, 587,535.54 and 167,047.25 is: 250,588.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,663.09 : 587,535.54 = 167,047.25 : x
  2. Step 2: Convert to fraction form
    391,663.09/587,535.54 = 167,047.25/x
  3. Step 3: Cross multiply
    391,663.09x = 587,535.54 × 167,047.25
  4. Step 4: Simplify right side
    391,663.09x = 98,146,195,399.03
  5. Step 5: Solve for x
    x = 98,146,195,399.03/391,663.09
  6. Step 6: Final answer
    x = 250,588.32

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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.