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Finding the Fourth Proportional to 107,542.80, 161,314.20 and 60,886.80

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Solution

The fourth proportional to 107,542.80, 161,314.20 and 60,886.80 is: 91,330.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,542.80 : 161,314.20 = 60,886.80 : x
  2. Step 2: Convert to fraction form
    107,542.80/161,314.20 = 60,886.80/x
  3. Step 3: Cross multiply
    107,542.80x = 161,314.20 × 60,886.80
  4. Step 4: Simplify right side
    107,542.80x = 9,821,905,432.56
  5. Step 5: Solve for x
    x = 9,821,905,432.56/107,542.80
  6. Step 6: Final answer
    x = 91,330.20

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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.