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Finding the Fourth Proportional to 247,221.09, 370,611.69 and 89,414.46

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Solution

The fourth proportional to 247,221.09, 370,611.69 and 89,414.46 is: 134,042.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,221.09 : 370,611.69 = 89,414.46 : x
  2. Step 2: Convert to fraction form
    247,221.09/370,611.69 = 89,414.46/x
  3. Step 3: Cross multiply
    247,221.09x = 370,611.69 × 89,414.46
  4. Step 4: Simplify right side
    247,221.09x = 33,138,044,131.04
  5. Step 5: Solve for x
    x = 33,138,044,131.04/247,221.09
  6. Step 6: Final answer
    x = 134,042.14

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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.