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Finding the Fourth Proportional to 101,116.60, 151,707.30 and 67,874.20

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Solution

The fourth proportional to 101,116.60, 151,707.30 and 67,874.20 is: 101,833.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,116.60 : 151,707.30 = 67,874.20 : x
  2. Step 2: Convert to fraction form
    101,116.60/151,707.30 = 67,874.20/x
  3. Step 3: Cross multiply
    101,116.60x = 151,707.30 × 67,874.20
  4. Step 4: Simplify right side
    101,116.60x = 10,297,011,621.66
  5. Step 5: Solve for x
    x = 10,297,011,621.66/101,116.60
  6. Step 6: Final answer
    x = 101,833.05

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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.