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Finding the Fourth Proportional to 113,151.80, 169,727.70 and 100,467.20

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Solution

The fourth proportional to 113,151.80, 169,727.70 and 100,467.20 is: 150,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,151.80 : 169,727.70 = 100,467.20 : x
  2. Step 2: Convert to fraction form
    113,151.80/169,727.70 = 100,467.20/x
  3. Step 3: Cross multiply
    113,151.80x = 169,727.70 × 100,467.20
  4. Step 4: Simplify right side
    113,151.80x = 17,052,066,781.44
  5. Step 5: Solve for x
    x = 17,052,066,781.44/113,151.80
  6. Step 6: Final answer
    x = 150,700.80

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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.