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Finding the Fourth Proportional to 75,617.86, 104,346.44 and 43,788.82

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Solution

The fourth proportional to 75,617.86, 104,346.44 and 43,788.82 is: 60,424.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,617.86 : 104,346.44 = 43,788.82 : x
  2. Step 2: Convert to fraction form
    75,617.86/104,346.44 = 43,788.82/x
  3. Step 3: Cross multiply
    75,617.86x = 104,346.44 × 43,788.82
  4. Step 4: Simplify right side
    75,617.86x = 4,569,207,478.80
  5. Step 5: Solve for x
    x = 4,569,207,478.80/75,617.86
  6. Step 6: Final answer
    x = 60,424.98

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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.