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Finding the Fourth Proportional to 167,812.64, 251,713.20 and 49,479.20

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Solution

The fourth proportional to 167,812.64, 251,713.20 and 49,479.20 is: 74,217.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,812.64 : 251,713.20 = 49,479.20 : x
  2. Step 2: Convert to fraction form
    167,812.64/251,713.20 = 49,479.20/x
  3. Step 3: Cross multiply
    167,812.64x = 251,713.20 × 49,479.20
  4. Step 4: Simplify right side
    167,812.64x = 12,454,567,765.44
  5. Step 5: Solve for x
    x = 12,454,567,765.44/167,812.64
  6. Step 6: Final answer
    x = 74,217.10

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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.