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Finding the Fourth Proportional to 169,691.62, 233,982.53 and 108,357.16

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Solution

The fourth proportional to 169,691.62, 233,982.53 and 108,357.16 is: 149,410.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,691.62 : 233,982.53 = 108,357.16 : x
  2. Step 2: Convert to fraction form
    169,691.62/233,982.53 = 108,357.16/x
  3. Step 3: Cross multiply
    169,691.62x = 233,982.53 × 108,357.16
  4. Step 4: Simplify right side
    169,691.62x = 25,353,681,588.78
  5. Step 5: Solve for x
    x = 25,353,681,588.78/169,691.62
  6. Step 6: Final answer
    x = 149,410.34

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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.