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Finding the Fourth Proportional to 79,876.66, 110,235.14 and 45,896.15

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Solution

The fourth proportional to 79,876.66, 110,235.14 and 45,896.15 is: 63,339.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,876.66 : 110,235.14 = 45,896.15 : x
  2. Step 2: Convert to fraction form
    79,876.66/110,235.14 = 45,896.15/x
  3. Step 3: Cross multiply
    79,876.66x = 110,235.14 × 45,896.15
  4. Step 4: Simplify right side
    79,876.66x = 5,059,368,118.86
  5. Step 5: Solve for x
    x = 5,059,368,118.86/79,876.66
  6. Step 6: Final answer
    x = 63,339.76

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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.