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Finding the Fourth Proportional to 358,469.20, 537,703.80 and 109,150.80

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Solution

The fourth proportional to 358,469.20, 537,703.80 and 109,150.80 is: 163,726.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,469.20 : 537,703.80 = 109,150.80 : x
  2. Step 2: Convert to fraction form
    358,469.20/537,703.80 = 109,150.80/x
  3. Step 3: Cross multiply
    358,469.20x = 537,703.80 × 109,150.80
  4. Step 4: Simplify right side
    358,469.20x = 58,690,799,933.04
  5. Step 5: Solve for x
    x = 58,690,799,933.04/358,469.20
  6. Step 6: Final answer
    x = 163,726.20

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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.