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Finding the Fourth Proportional to 234,647.63, 323,815.88 and 127,217.94

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Solution

The fourth proportional to 234,647.63, 323,815.88 and 127,217.94 is: 175,561.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,647.63 : 323,815.88 = 127,217.94 : x
  2. Step 2: Convert to fraction form
    234,647.63/323,815.88 = 127,217.94/x
  3. Step 3: Cross multiply
    234,647.63x = 323,815.88 × 127,217.94
  4. Step 4: Simplify right side
    234,647.63x = 41,195,189,402.49
  5. Step 5: Solve for x
    x = 41,195,189,402.49/234,647.63
  6. Step 6: Final answer
    x = 175,561.92

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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.