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Finding the Fourth Proportional to 169,637.80, 254,456.70 and 168,082.60

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Solution

The fourth proportional to 169,637.80, 254,456.70 and 168,082.60 is: 252,123.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,637.80 : 254,456.70 = 168,082.60 : x
  2. Step 2: Convert to fraction form
    169,637.80/254,456.70 = 168,082.60/x
  3. Step 3: Cross multiply
    169,637.80x = 254,456.70 × 168,082.60
  4. Step 4: Simplify right side
    169,637.80x = 42,769,743,723.42
  5. Step 5: Solve for x
    x = 42,769,743,723.42/169,637.80
  6. Step 6: Final answer
    x = 252,123.90

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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.