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Finding the Fourth Proportional to 91,449.65, 126,243.66 and 68,797.27

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Solution

The fourth proportional to 91,449.65, 126,243.66 and 68,797.27 is: 94,972.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,449.65 : 126,243.66 = 68,797.27 : x
  2. Step 2: Convert to fraction form
    91,449.65/126,243.66 = 68,797.27/x
  3. Step 3: Cross multiply
    91,449.65x = 126,243.66 × 68,797.27
  4. Step 4: Simplify right side
    91,449.65x = 8,685,218,187.60
  5. Step 5: Solve for x
    x = 8,685,218,187.60/91,449.65
  6. Step 6: Final answer
    x = 94,972.68

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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.