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Finding the Fourth Proportional to 234,311.77, 323,351.78 and 126,881.81

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Solution

The fourth proportional to 234,311.77, 323,351.78 and 126,881.81 is: 175,097.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,311.77 : 323,351.78 = 126,881.81 : x
  2. Step 2: Convert to fraction form
    234,311.77/323,351.78 = 126,881.81/x
  3. Step 3: Cross multiply
    234,311.77x = 323,351.78 × 126,881.81
  4. Step 4: Simplify right side
    234,311.77x = 41,027,459,113.12
  5. Step 5: Solve for x
    x = 41,027,459,113.12/234,311.77
  6. Step 6: Final answer
    x = 175,097.73

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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.