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Finding the Fourth Proportional to 71,967.24, 107,799.18 and 45,658.12

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Solution

The fourth proportional to 71,967.24, 107,799.18 and 45,658.12 is: 68,390.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,967.24 : 107,799.18 = 45,658.12 : x
  2. Step 2: Convert to fraction form
    71,967.24/107,799.18 = 45,658.12/x
  3. Step 3: Cross multiply
    71,967.24x = 107,799.18 × 45,658.12
  4. Step 4: Simplify right side
    71,967.24x = 4,921,907,896.34
  5. Step 5: Solve for x
    x = 4,921,907,896.34/71,967.24
  6. Step 6: Final answer
    x = 68,390.95

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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.