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Finding the Fourth Proportional to 67,393.90, 101,200.20 and 37,869.40

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Solution

The fourth proportional to 67,393.90, 101,200.20 and 37,869.40 is: 56,865.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,393.90 : 101,200.20 = 37,869.40 : x
  2. Step 2: Convert to fraction form
    67,393.90/101,200.20 = 37,869.40/x
  3. Step 3: Cross multiply
    67,393.90x = 101,200.20 × 37,869.40
  4. Step 4: Simplify right side
    67,393.90x = 3,832,390,853.88
  5. Step 5: Solve for x
    x = 3,832,390,853.88/67,393.90
  6. Step 6: Final answer
    x = 56,865.55

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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.