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Finding the Fourth Proportional to 61,775.87, 85,249.80 and 34,917.48

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Solution

The fourth proportional to 61,775.87, 85,249.80 and 34,917.48 is: 48,185.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,775.87 : 85,249.80 = 34,917.48 : x
  2. Step 2: Convert to fraction form
    61,775.87/85,249.80 = 34,917.48/x
  3. Step 3: Cross multiply
    61,775.87x = 85,249.80 × 34,917.48
  4. Step 4: Simplify right side
    61,775.87x = 2,976,708,186.50
  5. Step 5: Solve for x
    x = 2,976,708,186.50/61,775.87
  6. Step 6: Final answer
    x = 48,185.62

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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.