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Finding the Fourth Proportional to 71,620.32, 107,266.88 and 34,206.73

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Solution

The fourth proportional to 71,620.32, 107,266.88 and 34,206.73 is: 51,231.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,620.32 : 107,266.88 = 34,206.73 : x
  2. Step 2: Convert to fraction form
    71,620.32/107,266.88 = 34,206.73/x
  3. Step 3: Cross multiply
    71,620.32x = 107,266.88 × 34,206.73
  4. Step 4: Simplify right side
    71,620.32x = 3,669,249,321.14
  5. Step 5: Solve for x
    x = 3,669,249,321.14/71,620.32
  6. Step 6: Final answer
    x = 51,231.96

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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.