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Finding the Fourth Proportional to 67,367.75, 100,984.19 and 55,557.95

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Solution

The fourth proportional to 67,367.75, 100,984.19 and 55,557.95 is: 83,281.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,367.75 : 100,984.19 = 55,557.95 : x
  2. Step 2: Convert to fraction form
    67,367.75/100,984.19 = 55,557.95/x
  3. Step 3: Cross multiply
    67,367.75x = 100,984.19 × 55,557.95
  4. Step 4: Simplify right side
    67,367.75x = 5,610,473,796.10
  5. Step 5: Solve for x
    x = 5,610,473,796.10/67,367.75
  6. Step 6: Final answer
    x = 83,281.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.