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Finding the Fourth Proportional to 312,558.75, 468,837.72 and 75,901.05

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Solution

The fourth proportional to 312,558.75, 468,837.72 and 75,901.05 is: 113,851.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,558.75 : 468,837.72 = 75,901.05 : x
  2. Step 2: Convert to fraction form
    312,558.75/468,837.72 = 75,901.05/x
  3. Step 3: Cross multiply
    312,558.75x = 468,837.72 × 75,901.05
  4. Step 4: Simplify right side
    312,558.75x = 35,585,275,227.61
  5. Step 5: Solve for x
    x = 35,585,275,227.61/312,558.75
  6. Step 6: Final answer
    x = 113,851.48

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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.