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Finding the Fourth Proportional to 84,367.72, 126,748.41 and 49,331.98

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Solution

The fourth proportional to 84,367.72, 126,748.41 and 49,331.98 is: 74,113.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,367.72 : 126,748.41 = 49,331.98 : x
  2. Step 2: Convert to fraction form
    84,367.72/126,748.41 = 49,331.98/x
  3. Step 3: Cross multiply
    84,367.72x = 126,748.41 × 49,331.98
  4. Step 4: Simplify right side
    84,367.72x = 6,252,750,027.15
  5. Step 5: Solve for x
    x = 6,252,750,027.15/84,367.72
  6. Step 6: Final answer
    x = 74,113.06

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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.