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Finding the Fourth Proportional to 84,104.88, 125,984.88 and 67,374.24

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Solution

The fourth proportional to 84,104.88, 125,984.88 and 67,374.24 is: 100,923.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,104.88 : 125,984.88 = 67,374.24 : x
  2. Step 2: Convert to fraction form
    84,104.88/125,984.88 = 67,374.24/x
  3. Step 3: Cross multiply
    84,104.88x = 125,984.88 × 67,374.24
  4. Step 4: Simplify right side
    84,104.88x = 8,488,135,541.49
  5. Step 5: Solve for x
    x = 8,488,135,541.49/84,104.88
  6. Step 6: Final answer
    x = 100,923.22

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1.5x scale

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.