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Finding the Fourth Proportional to 107,542.70, 161,279.51 and 35,479.41

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Solution

The fourth proportional to 107,542.70, 161,279.51 and 35,479.41 is: 53,207.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,542.70 : 161,279.51 = 35,479.41 : x
  2. Step 2: Convert to fraction form
    107,542.70/161,279.51 = 35,479.41/x
  3. Step 3: Cross multiply
    107,542.70x = 161,279.51 × 35,479.41
  4. Step 4: Simplify right side
    107,542.70x = 5,722,101,859.89
  5. Step 5: Solve for x
    x = 5,722,101,859.89/107,542.70
  6. Step 6: Final answer
    x = 53,207.72

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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.