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Finding the Fourth Proportional to 479,139.86, 718,554.31 and 159,205.82

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Solution

The fourth proportional to 479,139.86, 718,554.31 and 159,205.82 is: 238,757.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,139.86 : 718,554.31 = 159,205.82 : x
  2. Step 2: Convert to fraction form
    479,139.86/718,554.31 = 159,205.82/x
  3. Step 3: Cross multiply
    479,139.86x = 718,554.31 × 159,205.82
  4. Step 4: Simplify right side
    479,139.86x = 114,398,024,147.30
  5. Step 5: Solve for x
    x = 114,398,024,147.30/479,139.86
  6. Step 6: Final answer
    x = 238,757.06

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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.