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Finding the Fourth Proportional to 234,993.75, 324,291.78 and 127,563.87

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Solution

The fourth proportional to 234,993.75, 324,291.78 and 127,563.87 is: 176,038.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,993.75 : 324,291.78 = 127,563.87 : x
  2. Step 2: Convert to fraction form
    234,993.75/324,291.78 = 127,563.87/x
  3. Step 3: Cross multiply
    234,993.75x = 324,291.78 × 127,563.87
  4. Step 4: Simplify right side
    234,993.75x = 41,367,914,465.99
  5. Step 5: Solve for x
    x = 41,367,914,465.99/234,993.75
  6. Step 6: Final answer
    x = 176,038.36

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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.