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Finding the Fourth Proportional to 484,921.20, 727,252.20 and 169,345.20

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Solution

The fourth proportional to 484,921.20, 727,252.20 and 169,345.20 is: 253,972.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,921.20 : 727,252.20 = 169,345.20 : x
  2. Step 2: Convert to fraction form
    484,921.20/727,252.20 = 169,345.20/x
  3. Step 3: Cross multiply
    484,921.20x = 727,252.20 × 169,345.20
  4. Step 4: Simplify right side
    484,921.20x = 123,156,669,259.44
  5. Step 5: Solve for x
    x = 123,156,669,259.44/484,921.20
  6. Step 6: Final answer
    x = 253,972.54

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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.