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Finding the Fourth Proportional to 144,571.76, 216,857.88 and 94,965.20

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Solution

The fourth proportional to 144,571.76, 216,857.88 and 94,965.20 is: 142,447.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,571.76 : 216,857.88 = 94,965.20 : x
  2. Step 2: Convert to fraction form
    144,571.76/216,857.88 = 94,965.20/x
  3. Step 3: Cross multiply
    144,571.76x = 216,857.88 × 94,965.20
  4. Step 4: Simplify right side
    144,571.76x = 20,593,951,945.78
  5. Step 5: Solve for x
    x = 20,593,951,945.78/144,571.76
  6. Step 6: Final answer
    x = 142,447.96

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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.