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Finding the Fourth Proportional to 217,995.74, 326,990.37 and 60,220.70

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Solution

The fourth proportional to 217,995.74, 326,990.37 and 60,220.70 is: 90,330.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,995.74 : 326,990.37 = 60,220.70 : x
  2. Step 2: Convert to fraction form
    217,995.74/326,990.37 = 60,220.70/x
  3. Step 3: Cross multiply
    217,995.74x = 326,990.37 × 60,220.70
  4. Step 4: Simplify right side
    217,995.74x = 19,691,588,974.66
  5. Step 5: Solve for x
    x = 19,691,588,974.66/217,995.74
  6. Step 6: Final answer
    x = 90,330.15

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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.