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Finding the Fourth Proportional to 168,429.62, 232,471.97 and 111,079.31

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Solution

The fourth proportional to 168,429.62, 232,471.97 and 111,079.31 is: 153,315.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,429.62 : 232,471.97 = 111,079.31 : x
  2. Step 2: Convert to fraction form
    168,429.62/232,471.97 = 111,079.31/x
  3. Step 3: Cross multiply
    168,429.62x = 232,471.97 × 111,079.31
  4. Step 4: Simplify right side
    168,429.62x = 25,822,824,304.18
  5. Step 5: Solve for x
    x = 25,822,824,304.18/168,429.62
  6. Step 6: Final answer
    x = 153,315.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.