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Finding the Fourth Proportional to 79,876.73, 110,226.15 and 45,861.32

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Solution

The fourth proportional to 79,876.73, 110,226.15 and 45,861.32 is: 63,286.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,876.73 : 110,226.15 = 45,861.32 : x
  2. Step 2: Convert to fraction form
    79,876.73/110,226.15 = 45,861.32/x
  3. Step 3: Cross multiply
    79,876.73x = 110,226.15 × 45,861.32
  4. Step 4: Simplify right side
    79,876.73x = 5,055,117,013.08
  5. Step 5: Solve for x
    x = 5,055,117,013.08/79,876.73
  6. Step 6: Final answer
    x = 63,286.48

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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.