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Finding the Fourth Proportional to 153,731.97, 230,585.65 and 68,369.26

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Solution

The fourth proportional to 153,731.97, 230,585.65 and 68,369.26 is: 102,548.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,731.97 : 230,585.65 = 68,369.26 : x
  2. Step 2: Convert to fraction form
    153,731.97/230,585.65 = 68,369.26/x
  3. Step 3: Cross multiply
    153,731.97x = 230,585.65 × 68,369.26
  4. Step 4: Simplify right side
    153,731.97x = 15,764,969,509.73
  5. Step 5: Solve for x
    x = 15,764,969,509.73/153,731.97
  6. Step 6: Final answer
    x = 102,548.41

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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.