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Finding the Fourth Proportional to 136,060.96, 187,775.96 and 75,643.44

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Solution

The fourth proportional to 136,060.96, 187,775.96 and 75,643.44 is: 104,394.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,060.96 : 187,775.96 = 75,643.44 : x
  2. Step 2: Convert to fraction form
    136,060.96/187,775.96 = 75,643.44/x
  3. Step 3: Cross multiply
    136,060.96x = 187,775.96 × 75,643.44
  4. Step 4: Simplify right side
    136,060.96x = 14,204,019,563.70
  5. Step 5: Solve for x
    x = 14,204,019,563.70/136,060.96
  6. Step 6: Final answer
    x = 104,394.53

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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.