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Finding the Fourth Proportional to 107,934.20, 161,901.30 and 60,500.60

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Solution

The fourth proportional to 107,934.20, 161,901.30 and 60,500.60 is: 90,750.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,934.20 : 161,901.30 = 60,500.60 : x
  2. Step 2: Convert to fraction form
    107,934.20/161,901.30 = 60,500.60/x
  3. Step 3: Cross multiply
    107,934.20x = 161,901.30 × 60,500.60
  4. Step 4: Simplify right side
    107,934.20x = 9,795,125,790.78
  5. Step 5: Solve for x
    x = 9,795,125,790.78/107,934.20
  6. Step 6: Final answer
    x = 90,750.90

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1.5x scale

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.