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Finding the Fourth Proportional to 83,278.62, 114,968.88 and 56,093.58

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Solution

The fourth proportional to 83,278.62, 114,968.88 and 56,093.58 is: 77,439.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,278.62 : 114,968.88 = 56,093.58 : x
  2. Step 2: Convert to fraction form
    83,278.62/114,968.88 = 56,093.58/x
  3. Step 3: Cross multiply
    83,278.62x = 114,968.88 × 56,093.58
  4. Step 4: Simplify right side
    83,278.62x = 6,449,016,067.79
  5. Step 5: Solve for x
    x = 6,449,016,067.79/83,278.62
  6. Step 6: Final answer
    x = 77,439.04

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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.