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Finding the Fourth Proportional to 309,625.92, 464,443.20 and 88,009.92

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Solution

The fourth proportional to 309,625.92, 464,443.20 and 88,009.92 is: 132,016.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,625.92 : 464,443.20 = 88,009.92 : x
  2. Step 2: Convert to fraction form
    309,625.92/464,443.20 = 88,009.92/x
  3. Step 3: Cross multiply
    309,625.92x = 464,443.20 × 88,009.92
  4. Step 4: Simplify right side
    309,625.92x = 40,875,608,876.54
  5. Step 5: Solve for x
    x = 40,875,608,876.54/309,625.92
  6. Step 6: Final answer
    x = 132,016.11

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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.