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Finding the Fourth Proportional to 313,299.54, 469,951.80 and 88,667.28

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Solution

The fourth proportional to 313,299.54, 469,951.80 and 88,667.28 is: 133,001.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,299.54 : 469,951.80 = 88,667.28 : x
  2. Step 2: Convert to fraction form
    313,299.54/469,951.80 = 88,667.28/x
  3. Step 3: Cross multiply
    313,299.54x = 469,951.80 × 88,667.28
  4. Step 4: Simplify right side
    313,299.54x = 41,669,347,837.10
  5. Step 5: Solve for x
    x = 41,669,347,837.10/313,299.54
  6. Step 6: Final answer
    x = 133,001.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.