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Finding the Fourth Proportional to 136,240.76, 204,174.84 and 102,933.56

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Solution

The fourth proportional to 136,240.76, 204,174.84 and 102,933.56 is: 154,259.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,240.76 : 204,174.84 = 102,933.56 : x
  2. Step 2: Convert to fraction form
    136,240.76/204,174.84 = 102,933.56/x
  3. Step 3: Cross multiply
    136,240.76x = 204,174.84 × 102,933.56
  4. Step 4: Simplify right side
    136,240.76x = 21,016,443,143.63
  5. Step 5: Solve for x
    x = 21,016,443,143.63/136,240.76
  6. Step 6: Final answer
    x = 154,259.59

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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.