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Finding the Fourth Proportional to 80,476.44, 110,990.40 and 60,377.88

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Solution

The fourth proportional to 80,476.44, 110,990.40 and 60,377.88 is: 83,271.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,476.44 : 110,990.40 = 60,377.88 : x
  2. Step 2: Convert to fraction form
    80,476.44/110,990.40 = 60,377.88/x
  3. Step 3: Cross multiply
    80,476.44x = 110,990.40 × 60,377.88
  4. Step 4: Simplify right side
    80,476.44x = 6,701,365,052.35
  5. Step 5: Solve for x
    x = 6,701,365,052.35/80,476.44
  6. Step 6: Final answer
    x = 83,271.14

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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.