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Finding the Fourth Proportional to 144,461.97, 216,550.80 and 84,414.24

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Solution

The fourth proportional to 144,461.97, 216,550.80 and 84,414.24 is: 126,538.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,461.97 : 216,550.80 = 84,414.24 : x
  2. Step 2: Convert to fraction form
    144,461.97/216,550.80 = 84,414.24/x
  3. Step 3: Cross multiply
    144,461.97x = 216,550.80 × 84,414.24
  4. Step 4: Simplify right side
    144,461.97x = 18,279,971,203.39
  5. Step 5: Solve for x
    x = 18,279,971,203.39/144,461.97
  6. Step 6: Final answer
    x = 126,538.29

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1.5x scale

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.