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Finding the Fourth Proportional to 153,287.87, 231,371.54 and 153,287.87

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Solution

The fourth proportional to 153,287.87, 231,371.54 and 153,287.87 is: 231,371.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,287.87 : 231,371.54 = 153,287.87 : x
  2. Step 2: Convert to fraction form
    153,287.87/231,371.54 = 153,287.87/x
  3. Step 3: Cross multiply
    153,287.87x = 231,371.54 × 153,287.87
  4. Step 4: Simplify right side
    153,287.87x = 35,466,448,621.92
  5. Step 5: Solve for x
    x = 35,466,448,621.92/153,287.87
  6. Step 6: Final answer
    x = 231,371.54

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.