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Finding the Fourth Proportional to 169,712.61, 234,245.48 and 98,082.28

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Solution

The fourth proportional to 169,712.61, 234,245.48 and 98,082.28 is: 135,377.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,712.61 : 234,245.48 = 98,082.28 : x
  2. Step 2: Convert to fraction form
    169,712.61/234,245.48 = 98,082.28/x
  3. Step 3: Cross multiply
    169,712.61x = 234,245.48 × 98,082.28
  4. Step 4: Simplify right side
    169,712.61x = 22,975,330,758.09
  5. Step 5: Solve for x
    x = 22,975,330,758.09/169,712.61
  6. Step 6: Final answer
    x = 135,377.86

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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.