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Finding the Fourth Proportional to 234,355.78, 323,410.86 and 126,925.80

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Solution

The fourth proportional to 234,355.78, 323,410.86 and 126,925.80 is: 175,157.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,355.78 : 323,410.86 = 126,925.80 : x
  2. Step 2: Convert to fraction form
    234,355.78/323,410.86 = 126,925.80/x
  3. Step 3: Cross multiply
    234,355.78x = 323,410.86 × 126,925.80
  4. Step 4: Simplify right side
    234,355.78x = 41,049,182,134.19
  5. Step 5: Solve for x
    x = 41,049,182,134.19/234,355.78
  6. Step 6: Final answer
    x = 175,157.54

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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.