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Finding the Fourth Proportional to 91,952.72, 126,900.18 and 69,251.66

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Solution

The fourth proportional to 91,952.72, 126,900.18 and 69,251.66 is: 95,571.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,952.72 : 126,900.18 = 69,251.66 : x
  2. Step 2: Convert to fraction form
    91,952.72/126,900.18 = 69,251.66/x
  3. Step 3: Cross multiply
    91,952.72x = 126,900.18 × 69,251.66
  4. Step 4: Simplify right side
    91,952.72x = 8,788,048,119.30
  5. Step 5: Solve for x
    x = 8,788,048,119.30/91,952.72
  6. Step 6: Final answer
    x = 95,571.38

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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.