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Finding the Fourth Proportional to 484,713.92, 727,076.16 and 169,172

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Solution

The fourth proportional to 484,713.92, 727,076.16 and 169,172 is: 253,759.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,713.92 : 727,076.16 = 169,172 : x
  2. Step 2: Convert to fraction form
    484,713.92/727,076.16 = 169,172/x
  3. Step 3: Cross multiply
    484,713.92x = 727,076.16 × 169,172
  4. Step 4: Simplify right side
    484,713.92x = 123,000,928,139.52
  5. Step 5: Solve for x
    x = 123,000,928,139.52/484,713.92
  6. Step 6: Final answer
    x = 253,759.84

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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.