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Finding the Fourth Proportional to 78,251.33, 117,220.46 and 36,073.73

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Solution

The fourth proportional to 78,251.33, 117,220.46 and 36,073.73 is: 54,038.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,251.33 : 117,220.46 = 36,073.73 : x
  2. Step 2: Convert to fraction form
    78,251.33/117,220.46 = 36,073.73/x
  3. Step 3: Cross multiply
    78,251.33x = 117,220.46 × 36,073.73
  4. Step 4: Simplify right side
    78,251.33x = 4,228,579,337.20
  5. Step 5: Solve for x
    x = 4,228,579,337.20/78,251.33
  6. Step 6: Final answer
    x = 54,038.43

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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.