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Finding the Fourth Proportional to 312,593.72, 468,886.89 and 75,936.62

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Solution

The fourth proportional to 312,593.72, 468,886.89 and 75,936.62 is: 113,904.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,593.72 : 468,886.89 = 75,936.62 : x
  2. Step 2: Convert to fraction form
    312,593.72/468,886.89 = 75,936.62/x
  3. Step 3: Cross multiply
    312,593.72x = 468,886.89 × 75,936.62
  4. Step 4: Simplify right side
    312,593.72x = 35,605,687,045.89
  5. Step 5: Solve for x
    x = 35,605,687,045.89/312,593.72
  6. Step 6: Final answer
    x = 113,904.04

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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.