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Finding the Fourth Proportional to 244,872, 337,923.36 and 138,888

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Solution

The fourth proportional to 244,872, 337,923.36 and 138,888 is: 191,665.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,872 : 337,923.36 = 138,888 : x
  2. Step 2: Convert to fraction form
    244,872/337,923.36 = 138,888/x
  3. Step 3: Cross multiply
    244,872x = 337,923.36 × 138,888
  4. Step 4: Simplify right side
    244,872x = 46,933,499,623.68
  5. Step 5: Solve for x
    x = 46,933,499,623.68/244,872
  6. Step 6: Final answer
    x = 191,665.44

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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.