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Finding the Fourth Proportional to 127,375.40, 191,064.92 and 48,493.96

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Solution

The fourth proportional to 127,375.40, 191,064.92 and 48,493.96 is: 72,741.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,375.40 : 191,064.92 = 48,493.96 : x
  2. Step 2: Convert to fraction form
    127,375.40/191,064.92 = 48,493.96/x
  3. Step 3: Cross multiply
    127,375.40x = 191,064.92 × 48,493.96
  4. Step 4: Simplify right side
    127,375.40x = 9,265,493,390.09
  5. Step 5: Solve for x
    x = 9,265,493,390.09/127,375.40
  6. Step 6: Final answer
    x = 72,741.62

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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.