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Finding the Fourth Proportional to 113,874.40, 170,860.20 and 54,679.60

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Solution

The fourth proportional to 113,874.40, 170,860.20 and 54,679.60 is: 82,042.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,874.40 : 170,860.20 = 54,679.60 : x
  2. Step 2: Convert to fraction form
    113,874.40/170,860.20 = 54,679.60/x
  3. Step 3: Cross multiply
    113,874.40x = 170,860.20 × 54,679.60
  4. Step 4: Simplify right side
    113,874.40x = 9,342,567,391.92
  5. Step 5: Solve for x
    x = 9,342,567,391.92/113,874.40
  6. Step 6: Final answer
    x = 82,042.74

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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.