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Finding the Fourth Proportional to 80,431.84, 110,987.04 and 44,612.92

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Solution

The fourth proportional to 80,431.84, 110,987.04 and 44,612.92 is: 61,560.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,431.84 : 110,987.04 = 44,612.92 : x
  2. Step 2: Convert to fraction form
    80,431.84/110,987.04 = 44,612.92/x
  3. Step 3: Cross multiply
    80,431.84x = 110,987.04 × 44,612.92
  4. Step 4: Simplify right side
    80,431.84x = 4,951,455,936.56
  5. Step 5: Solve for x
    x = 4,951,455,936.56/80,431.84
  6. Step 6: Final answer
    x = 61,560.89

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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.