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Finding the Fourth Proportional to 250,593.12, 345,815.28 and 143,162.28

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Solution

The fourth proportional to 250,593.12, 345,815.28 and 143,162.28 is: 197,562.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,593.12 : 345,815.28 = 143,162.28 : x
  2. Step 2: Convert to fraction form
    250,593.12/345,815.28 = 143,162.28/x
  3. Step 3: Cross multiply
    250,593.12x = 345,815.28 × 143,162.28
  4. Step 4: Simplify right side
    250,593.12x = 49,507,703,943.64
  5. Step 5: Solve for x
    x = 49,507,703,943.64/250,593.12
  6. Step 6: Final answer
    x = 197,562.10

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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.