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Finding the Fourth Proportional to 91,735.91, 137,471.06 and 63,243.62

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Solution

The fourth proportional to 91,735.91, 137,471.06 and 63,243.62 is: 94,773.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,735.91 : 137,471.06 = 63,243.62 : x
  2. Step 2: Convert to fraction form
    91,735.91/137,471.06 = 63,243.62/x
  3. Step 3: Cross multiply
    91,735.91x = 137,471.06 × 63,243.62
  4. Step 4: Simplify right side
    91,735.91x = 8,694,167,479.64
  5. Step 5: Solve for x
    x = 8,694,167,479.64/91,735.91
  6. Step 6: Final answer
    x = 94,773.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.