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Finding the Fourth Proportional to 67,648.40, 101,278.20 and 41,404.40

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Solution

The fourth proportional to 67,648.40, 101,278.20 and 41,404.40 is: 61,987.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,648.40 : 101,278.20 = 41,404.40 : x
  2. Step 2: Convert to fraction form
    67,648.40/101,278.20 = 41,404.40/x
  3. Step 3: Cross multiply
    67,648.40x = 101,278.20 × 41,404.40
  4. Step 4: Simplify right side
    67,648.40x = 4,193,363,104.08
  5. Step 5: Solve for x
    x = 4,193,363,104.08/67,648.40
  6. Step 6: Final answer
    x = 61,987.62

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1.5x scale

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.