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Finding the Fourth Proportional to 175,469.72, 242,133.48 and 103,837.28

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Solution

The fourth proportional to 175,469.72, 242,133.48 and 103,837.28 is: 143,286.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,469.72 : 242,133.48 = 103,837.28 : x
  2. Step 2: Convert to fraction form
    175,469.72/242,133.48 = 103,837.28/x
  3. Step 3: Cross multiply
    175,469.72x = 242,133.48 × 103,837.28
  4. Step 4: Simplify right side
    175,469.72x = 25,142,481,960.13
  5. Step 5: Solve for x
    x = 25,142,481,960.13/175,469.72
  6. Step 6: Final answer
    x = 143,286.73

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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.