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Finding the Fourth Proportional to 91,616.94, 126,432.63 and 51,329.97

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Solution

The fourth proportional to 91,616.94, 126,432.63 and 51,329.97 is: 70,836.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,616.94 : 126,432.63 = 51,329.97 : x
  2. Step 2: Convert to fraction form
    91,616.94/126,432.63 = 51,329.97/x
  3. Step 3: Cross multiply
    91,616.94x = 126,432.63 × 51,329.97
  4. Step 4: Simplify right side
    91,616.94x = 6,489,783,104.92
  5. Step 5: Solve for x
    x = 6,489,783,104.92/91,616.94
  6. Step 6: Final answer
    x = 70,836.06

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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.