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Finding the Fourth Proportional to 354,651.20, 532,000.80 and 144,292.80

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Solution

The fourth proportional to 354,651.20, 532,000.80 and 144,292.80 is: 216,448.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,651.20 : 532,000.80 = 144,292.80 : x
  2. Step 2: Convert to fraction form
    354,651.20/532,000.80 = 144,292.80/x
  3. Step 3: Cross multiply
    354,651.20x = 532,000.80 × 144,292.80
  4. Step 4: Simplify right side
    354,651.20x = 76,763,885,034.24
  5. Step 5: Solve for x
    x = 76,763,885,034.24/354,651.20
  6. Step 6: Final answer
    x = 216,448.96

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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.