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Finding the Fourth Proportional to 479,145.62, 718,562.90 and 159,211.56

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Solution

The fourth proportional to 479,145.62, 718,562.90 and 159,211.56 is: 238,765.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,145.62 : 718,562.90 = 159,211.56 : x
  2. Step 2: Convert to fraction form
    479,145.62/718,562.90 = 159,211.56/x
  3. Step 3: Cross multiply
    479,145.62x = 718,562.90 × 159,211.56
  4. Step 4: Simplify right side
    479,145.62x = 114,403,520,267.12
  5. Step 5: Solve for x
    x = 114,403,520,267.12/479,145.62
  6. Step 6: Final answer
    x = 238,765.66

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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.