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Finding the Fourth Proportional to 188,479.28, 282,811.19 and 88,649.57

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Solution

The fourth proportional to 188,479.28, 282,811.19 and 88,649.57 is: 133,017.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,479.28 : 282,811.19 = 88,649.57 : x
  2. Step 2: Convert to fraction form
    188,479.28/282,811.19 = 88,649.57/x
  3. Step 3: Cross multiply
    188,479.28x = 282,811.19 × 88,649.57
  4. Step 4: Simplify right side
    188,479.28x = 25,071,090,648.47
  5. Step 5: Solve for x
    x = 25,071,090,648.47/188,479.28
  6. Step 6: Final answer
    x = 133,017.75

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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.