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Finding the Fourth Proportional to 268,011.93, 402,026.78 and 134,819.61

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Solution

The fourth proportional to 268,011.93, 402,026.78 and 134,819.61 is: 202,233.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,011.93 : 402,026.78 = 134,819.61 : x
  2. Step 2: Convert to fraction form
    268,011.93/402,026.78 = 134,819.61/x
  3. Step 3: Cross multiply
    268,011.93x = 402,026.78 × 134,819.61
  4. Step 4: Simplify right side
    268,011.93x = 54,201,093,015.06
  5. Step 5: Solve for x
    x = 54,201,093,015.06/268,011.93
  6. Step 6: Final answer
    x = 202,233.88

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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.