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Finding the Fourth Proportional to 319,699.52, 479,763.04 and 132,711.04

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Solution

The fourth proportional to 319,699.52, 479,763.04 and 132,711.04 is: 199,155.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,699.52 : 479,763.04 = 132,711.04 : x
  2. Step 2: Convert to fraction form
    319,699.52/479,763.04 = 132,711.04/x
  3. Step 3: Cross multiply
    319,699.52x = 479,763.04 × 132,711.04
  4. Step 4: Simplify right side
    319,699.52x = 63,669,851,991.96
  5. Step 5: Solve for x
    x = 63,669,851,991.96/319,699.52
  6. Step 6: Final answer
    x = 199,155.29

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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.