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Finding the Fourth Proportional to 234,300.78, 323,334.62 and 126,870.48

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Solution

The fourth proportional to 234,300.78, 323,334.62 and 126,870.48 is: 175,081.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,300.78 : 323,334.62 = 126,870.48 : x
  2. Step 2: Convert to fraction form
    234,300.78/323,334.62 = 126,870.48/x
  3. Step 3: Cross multiply
    234,300.78x = 323,334.62 × 126,870.48
  4. Step 4: Simplify right side
    234,300.78x = 41,021,618,440.02
  5. Step 5: Solve for x
    x = 41,021,618,440.02/234,300.78
  6. Step 6: Final answer
    x = 175,081.02

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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.