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Finding the Fourth Proportional to 144,553.20, 217,348.20 and 121,743.60

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Solution

The fourth proportional to 144,553.20, 217,348.20 and 121,743.60 is: 183,052.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,553.20 : 217,348.20 = 121,743.60 : x
  2. Step 2: Convert to fraction form
    144,553.20/217,348.20 = 121,743.60/x
  3. Step 3: Cross multiply
    144,553.20x = 217,348.20 × 121,743.60
  4. Step 4: Simplify right side
    144,553.20x = 26,460,752,321.52
  5. Step 5: Solve for x
    x = 26,460,752,321.52/144,553.20
  6. Step 6: Final answer
    x = 183,052.00

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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.