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Finding the Fourth Proportional to 158,634.87, 237,945.42 and 53,453.40

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Solution

The fourth proportional to 158,634.87, 237,945.42 and 53,453.40 is: 80,177.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,634.87 : 237,945.42 = 53,453.40 : x
  2. Step 2: Convert to fraction form
    158,634.87/237,945.42 = 53,453.40/x
  3. Step 3: Cross multiply
    158,634.87x = 237,945.42 × 53,453.40
  4. Step 4: Simplify right side
    158,634.87x = 12,718,991,713.43
  5. Step 5: Solve for x
    x = 12,718,991,713.43/158,634.87
  6. Step 6: Final answer
    x = 80,177.78

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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.