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Finding the Fourth Proportional to 80,672.34, 111,326.32 and 44,857.78

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Solution

The fourth proportional to 80,672.34, 111,326.32 and 44,857.78 is: 61,902.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,672.34 : 111,326.32 = 44,857.78 : x
  2. Step 2: Convert to fraction form
    80,672.34/111,326.32 = 44,857.78/x
  3. Step 3: Cross multiply
    80,672.34x = 111,326.32 × 44,857.78
  4. Step 4: Simplify right side
    80,672.34x = 4,993,851,570.77
  5. Step 5: Solve for x
    x = 4,993,851,570.77/80,672.34
  6. Step 6: Final answer
    x = 61,902.90

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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.