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Finding the Fourth Proportional to 91,169.98, 125,820.88 and 50,891.56

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Solution

The fourth proportional to 91,169.98, 125,820.88 and 50,891.56 is: 70,233.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,169.98 : 125,820.88 = 50,891.56 : x
  2. Step 2: Convert to fraction form
    91,169.98/125,820.88 = 50,891.56/x
  3. Step 3: Cross multiply
    91,169.98x = 125,820.88 × 50,891.56
  4. Step 4: Simplify right side
    91,169.98x = 6,403,220,863.77
  5. Step 5: Solve for x
    x = 6,403,220,863.77/91,169.98
  6. Step 6: Final answer
    x = 70,233.87

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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.