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Finding the Fourth Proportional to 234,348.88, 323,399.64 and 126,918.58

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Solution

The fourth proportional to 234,348.88, 323,399.64 and 126,918.58 is: 175,146.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,348.88 : 323,399.64 = 126,918.58 : x
  2. Step 2: Convert to fraction form
    234,348.88/323,399.64 = 126,918.58/x
  3. Step 3: Cross multiply
    234,348.88x = 323,399.64 × 126,918.58
  4. Step 4: Simplify right side
    234,348.88x = 41,045,423,081.31
  5. Step 5: Solve for x
    x = 41,045,423,081.31/234,348.88
  6. Step 6: Final answer
    x = 175,146.66

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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.