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Finding the Fourth Proportional to 135,959.34, 187,623.72 and 75,535.56

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Solution

The fourth proportional to 135,959.34, 187,623.72 and 75,535.56 is: 104,238.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,959.34 : 187,623.72 = 75,535.56 : x
  2. Step 2: Convert to fraction form
    135,959.34/187,623.72 = 75,535.56/x
  3. Step 3: Cross multiply
    135,959.34x = 187,623.72 × 75,535.56
  4. Step 4: Simplify right side
    135,959.34x = 14,172,262,759.48
  5. Step 5: Solve for x
    x = 14,172,262,759.48/135,959.34
  6. Step 6: Final answer
    x = 104,238.98

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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.