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Finding the Fourth Proportional to 67,377.80, 101,115.30 and 37,764.20

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Solution

The fourth proportional to 67,377.80, 101,115.30 and 37,764.20 is: 56,673.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,377.80 : 101,115.30 = 37,764.20 : x
  2. Step 2: Convert to fraction form
    67,377.80/101,115.30 = 37,764.20/x
  3. Step 3: Cross multiply
    67,377.80x = 101,115.30 × 37,764.20
  4. Step 4: Simplify right side
    67,377.80x = 3,818,538,412.26
  5. Step 5: Solve for x
    x = 3,818,538,412.26/67,377.80
  6. Step 6: Final answer
    x = 56,673.54

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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.