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Finding the Fourth Proportional to 91,937.98, 126,879.82 and 69,236.92

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Solution

The fourth proportional to 91,937.98, 126,879.82 and 69,236.92 is: 95,551.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,937.98 : 126,879.82 = 69,236.92 : x
  2. Step 2: Convert to fraction form
    91,937.98/126,879.82 = 69,236.92/x
  3. Step 3: Cross multiply
    91,937.98x = 126,879.82 × 69,236.92
  4. Step 4: Simplify right side
    91,937.98x = 8,784,767,946.95
  5. Step 5: Solve for x
    x = 8,784,767,946.95/91,937.98
  6. Step 6: Final answer
    x = 95,551.02

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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.