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Finding the Fourth Proportional to 84,996.40, 127,248.28 and 75,991.44

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Solution

The fourth proportional to 84,996.40, 127,248.28 and 75,991.44 is: 113,766.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,996.40 : 127,248.28 = 75,991.44 : x
  2. Step 2: Convert to fraction form
    84,996.40/127,248.28 = 75,991.44/x
  3. Step 3: Cross multiply
    84,996.40x = 127,248.28 × 75,991.44
  4. Step 4: Simplify right side
    84,996.40x = 9,669,780,034.72
  5. Step 5: Solve for x
    x = 9,669,780,034.72/84,996.40
  6. Step 6: Final answer
    x = 113,766.94

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1.5x scale

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.