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Finding the Fourth Proportional to 110,687.56, 152,765.94 and 65,370.44

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Solution

The fourth proportional to 110,687.56, 152,765.94 and 65,370.44 is: 90,221.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,687.56 : 152,765.94 = 65,370.44 : x
  2. Step 2: Convert to fraction form
    110,687.56/152,765.94 = 65,370.44/x
  3. Step 3: Cross multiply
    110,687.56x = 152,765.94 × 65,370.44
  4. Step 4: Simplify right side
    110,687.56x = 9,986,376,714.81
  5. Step 5: Solve for x
    x = 9,986,376,714.81/110,687.56
  6. Step 6: Final answer
    x = 90,221.31

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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.