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Finding the Fourth Proportional to 167,231.61, 230,778.46 and 90,748.76

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Solution

The fourth proportional to 167,231.61, 230,778.46 and 90,748.76 is: 125,232.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,231.61 : 230,778.46 = 90,748.76 : x
  2. Step 2: Convert to fraction form
    167,231.61/230,778.46 = 90,748.76/x
  3. Step 3: Cross multiply
    167,231.61x = 230,778.46 × 90,748.76
  4. Step 4: Simplify right side
    167,231.61x = 20,942,859,079.71
  5. Step 5: Solve for x
    x = 20,942,859,079.71/167,231.61
  6. Step 6: Final answer
    x = 125,232.66

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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.