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Finding the Fourth Proportional to 188,479.74, 282,815.28 and 125,343.78

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Solution

The fourth proportional to 188,479.74, 282,815.28 and 125,343.78 is: 188,079.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,479.74 : 282,815.28 = 125,343.78 : x
  2. Step 2: Convert to fraction form
    188,479.74/282,815.28 = 125,343.78/x
  3. Step 3: Cross multiply
    188,479.74x = 282,815.28 × 125,343.78
  4. Step 4: Simplify right side
    188,479.74x = 35,449,136,236.96
  5. Step 5: Solve for x
    x = 35,449,136,236.96/188,479.74
  6. Step 6: Final answer
    x = 188,079.29

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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.