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Finding the Fourth Proportional to 527,286.80, 790,843.80 and 148,233.20

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Solution

The fourth proportional to 527,286.80, 790,843.80 and 148,233.20 is: 222,325.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,286.80 : 790,843.80 = 148,233.20 : x
  2. Step 2: Convert to fraction form
    527,286.80/790,843.80 = 148,233.20/x
  3. Step 3: Cross multiply
    527,286.80x = 790,843.80 × 148,233.20
  4. Step 4: Simplify right side
    527,286.80x = 117,229,307,174.16
  5. Step 5: Solve for x
    x = 117,229,307,174.16/527,286.80
  6. Step 6: Final answer
    x = 222,325.51

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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.