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Finding the Fourth Proportional to 79,259.85, 109,375.20 and 47,446.29

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Solution

The fourth proportional to 79,259.85, 109,375.20 and 47,446.29 is: 65,473.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,259.85 : 109,375.20 = 47,446.29 : x
  2. Step 2: Convert to fraction form
    79,259.85/109,375.20 = 47,446.29/x
  3. Step 3: Cross multiply
    79,259.85x = 109,375.20 × 47,446.29
  4. Step 4: Simplify right side
    79,259.85x = 5,189,447,458.01
  5. Step 5: Solve for x
    x = 5,189,447,458.01/79,259.85
  6. Step 6: Final answer
    x = 65,473.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.