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Finding the Fourth Proportional to 255,382.20, 352,373.49 and 147,945.87

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Solution

The fourth proportional to 255,382.20, 352,373.49 and 147,945.87 is: 204,134.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,382.20 : 352,373.49 = 147,945.87 : x
  2. Step 2: Convert to fraction form
    255,382.20/352,373.49 = 147,945.87/x
  3. Step 3: Cross multiply
    255,382.20x = 352,373.49 × 147,945.87
  4. Step 4: Simplify right side
    255,382.20x = 52,132,202,542.99
  5. Step 5: Solve for x
    x = 52,132,202,542.99/255,382.20
  6. Step 6: Final answer
    x = 204,134.05

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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.