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Finding the Fourth Proportional to 79,948.66, 110,327.42 and 43,648.86

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Solution

The fourth proportional to 79,948.66, 110,327.42 and 43,648.86 is: 60,234.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,948.66 : 110,327.42 = 43,648.86 : x
  2. Step 2: Convert to fraction form
    79,948.66/110,327.42 = 43,648.86/x
  3. Step 3: Cross multiply
    79,948.66x = 110,327.42 × 43,648.86
  4. Step 4: Simplify right side
    79,948.66x = 4,815,666,109.74
  5. Step 5: Solve for x
    x = 4,815,666,109.74/79,948.66
  6. Step 6: Final answer
    x = 60,234.48

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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.