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Finding the Fourth Proportional to 220,866.44, 331,330.98 and 71,071.93

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Solution

The fourth proportional to 220,866.44, 331,330.98 and 71,071.93 is: 106,617.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,866.44 : 331,330.98 = 71,071.93 : x
  2. Step 2: Convert to fraction form
    220,866.44/331,330.98 = 71,071.93/x
  3. Step 3: Cross multiply
    220,866.44x = 331,330.98 × 71,071.93
  4. Step 4: Simplify right side
    220,866.44x = 23,548,332,217.39
  5. Step 5: Solve for x
    x = 23,548,332,217.39/220,866.44
  6. Step 6: Final answer
    x = 106,617.97

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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.