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Finding the Fourth Proportional to 91,635.84, 126,534.51 and 68,935.41

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Solution

The fourth proportional to 91,635.84, 126,534.51 and 68,935.41 is: 95,188.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,635.84 : 126,534.51 = 68,935.41 : x
  2. Step 2: Convert to fraction form
    91,635.84/126,534.51 = 68,935.41/x
  3. Step 3: Cross multiply
    91,635.84x = 126,534.51 × 68,935.41
  4. Step 4: Simplify right side
    91,635.84x = 8,722,708,326.00
  5. Step 5: Solve for x
    x = 8,722,708,326.00/91,635.84
  6. Step 6: Final answer
    x = 95,188.83

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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.