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Finding the Fourth Proportional to 144,143.31, 216,214.97 and 104,949.84

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Solution

The fourth proportional to 144,143.31, 216,214.97 and 104,949.84 is: 157,424.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,143.31 : 216,214.97 = 104,949.84 : x
  2. Step 2: Convert to fraction form
    144,143.31/216,214.97 = 104,949.84/x
  3. Step 3: Cross multiply
    144,143.31x = 216,214.97 × 104,949.84
  4. Step 4: Simplify right side
    144,143.31x = 22,691,726,507.10
  5. Step 5: Solve for x
    x = 22,691,726,507.10/144,143.31
  6. Step 6: Final answer
    x = 157,424.76

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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.