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Finding the Fourth Proportional to 144,622.40, 216,949.80 and 44,781.80

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Solution

The fourth proportional to 144,622.40, 216,949.80 and 44,781.80 is: 67,177.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,622.40 : 216,949.80 = 44,781.80 : x
  2. Step 2: Convert to fraction form
    144,622.40/216,949.80 = 44,781.80/x
  3. Step 3: Cross multiply
    144,622.40x = 216,949.80 × 44,781.80
  4. Step 4: Simplify right side
    144,622.40x = 9,715,402,553.64
  5. Step 5: Solve for x
    x = 9,715,402,553.64/144,622.40
  6. Step 6: Final answer
    x = 67,177.72

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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.