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Finding the Fourth Proportional to 84,373.88, 126,587.28 and 50,678.56

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Solution

The fourth proportional to 84,373.88, 126,587.28 and 50,678.56 is: 76,033.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,373.88 : 126,587.28 = 50,678.56 : x
  2. Step 2: Convert to fraction form
    84,373.88/126,587.28 = 50,678.56/x
  3. Step 3: Cross multiply
    84,373.88x = 126,587.28 × 50,678.56
  4. Step 4: Simplify right side
    84,373.88x = 6,415,260,431.78
  5. Step 5: Solve for x
    x = 6,415,260,431.78/84,373.88
  6. Step 6: Final answer
    x = 76,033.73

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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.