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Finding the Fourth Proportional to 80,116.56, 120,079.08 and 37,364.40

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Solution

The fourth proportional to 80,116.56, 120,079.08 and 37,364.40 is: 56,001.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,116.56 : 120,079.08 = 37,364.40 : x
  2. Step 2: Convert to fraction form
    80,116.56/120,079.08 = 37,364.40/x
  3. Step 3: Cross multiply
    80,116.56x = 120,079.08 × 37,364.40
  4. Step 4: Simplify right side
    80,116.56x = 4,486,682,776.75
  5. Step 5: Solve for x
    x = 4,486,682,776.75/80,116.56
  6. Step 6: Final answer
    x = 56,001.94

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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.