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Finding the Fourth Proportional to 107,079.60, 160,273.80 and 98,785.20

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Solution

The fourth proportional to 107,079.60, 160,273.80 and 98,785.20 is: 147,858.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,079.60 : 160,273.80 = 98,785.20 : x
  2. Step 2: Convert to fraction form
    107,079.60/160,273.80 = 98,785.20/x
  3. Step 3: Cross multiply
    107,079.60x = 160,273.80 × 98,785.20
  4. Step 4: Simplify right side
    107,079.60x = 15,832,679,387.76
  5. Step 5: Solve for x
    x = 15,832,679,387.76/107,079.60
  6. Step 6: Final answer
    x = 147,858.97

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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.