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Finding the Fourth Proportional to 78,493.75, 108,331.19 and 44,959.75

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Solution

The fourth proportional to 78,493.75, 108,331.19 and 44,959.75 is: 62,050.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,493.75 : 108,331.19 = 44,959.75 : x
  2. Step 2: Convert to fraction form
    78,493.75/108,331.19 = 44,959.75/x
  3. Step 3: Cross multiply
    78,493.75x = 108,331.19 × 44,959.75
  4. Step 4: Simplify right side
    78,493.75x = 4,870,543,219.60
  5. Step 5: Solve for x
    x = 4,870,543,219.60/78,493.75
  6. Step 6: Final answer
    x = 62,050.08

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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.