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Finding the Fourth Proportional to 215,466.75, 323,200.13 and 67,722.75

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Solution

The fourth proportional to 215,466.75, 323,200.13 and 67,722.75 is: 101,584.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,466.75 : 323,200.13 = 67,722.75 : x
  2. Step 2: Convert to fraction form
    215,466.75/323,200.13 = 67,722.75/x
  3. Step 3: Cross multiply
    215,466.75x = 323,200.13 × 67,722.75
  4. Step 4: Simplify right side
    215,466.75x = 21,888,001,265.34
  5. Step 5: Solve for x
    x = 21,888,001,265.34/215,466.75
  6. Step 6: Final answer
    x = 101,584.13

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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.