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Finding the Fourth Proportional to 160,171.20, 240,052.32 and 75,931.20

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Solution

The fourth proportional to 160,171.20, 240,052.32 and 75,931.20 is: 113,799.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,171.20 : 240,052.32 = 75,931.20 : x
  2. Step 2: Convert to fraction form
    160,171.20/240,052.32 = 75,931.20/x
  3. Step 3: Cross multiply
    160,171.20x = 240,052.32 × 75,931.20
  4. Step 4: Simplify right side
    160,171.20x = 18,227,460,720.38
  5. Step 5: Solve for x
    x = 18,227,460,720.38/160,171.20
  6. Step 6: Final answer
    x = 113,799.86

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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.