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Finding the Fourth Proportional to 120,793.60, 166,696.80 and 67,082.08

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Solution

The fourth proportional to 120,793.60, 166,696.80 and 67,082.08 is: 92,574.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,793.60 : 166,696.80 = 67,082.08 : x
  2. Step 2: Convert to fraction form
    120,793.60/166,696.80 = 67,082.08/x
  3. Step 3: Cross multiply
    120,793.60x = 166,696.80 × 67,082.08
  4. Step 4: Simplify right side
    120,793.60x = 11,182,368,073.34
  5. Step 5: Solve for x
    x = 11,182,368,073.34/120,793.60
  6. Step 6: Final answer
    x = 92,574.18

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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.