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Finding the Fourth Proportional to 78,170.66, 107,880.41 and 44,180.73

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Solution

The fourth proportional to 78,170.66, 107,880.41 and 44,180.73 is: 60,972.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,170.66 : 107,880.41 = 44,180.73 : x
  2. Step 2: Convert to fraction form
    78,170.66/107,880.41 = 44,180.73/x
  3. Step 3: Cross multiply
    78,170.66x = 107,880.41 × 44,180.73
  4. Step 4: Simplify right side
    78,170.66x = 4,766,235,045.60
  5. Step 5: Solve for x
    x = 4,766,235,045.60/78,170.66
  6. Step 6: Final answer
    x = 60,972.18

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1.5x scale

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.