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Finding the Fourth Proportional to 85,079.15, 117,394.88 and 49,262.97

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Solution

The fourth proportional to 85,079.15, 117,394.88 and 49,262.97 is: 67,974.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,079.15 : 117,394.88 = 49,262.97 : x
  2. Step 2: Convert to fraction form
    85,079.15/117,394.88 = 49,262.97/x
  3. Step 3: Cross multiply
    85,079.15x = 117,394.88 × 49,262.97
  4. Step 4: Simplify right side
    85,079.15x = 5,783,220,451.59
  5. Step 5: Solve for x
    x = 5,783,220,451.59/85,079.15
  6. Step 6: Final answer
    x = 67,974.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.