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Finding the Fourth Proportional to 250,667.11, 345,998.06 and 161,243.11

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Solution

The fourth proportional to 250,667.11, 345,998.06 and 161,243.11 is: 222,565.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,667.11 : 345,998.06 = 161,243.11 : x
  2. Step 2: Convert to fraction form
    250,667.11/345,998.06 = 161,243.11/x
  3. Step 3: Cross multiply
    250,667.11x = 345,998.06 × 161,243.11
  4. Step 4: Simplify right side
    250,667.11x = 55,789,803,248.37
  5. Step 5: Solve for x
    x = 55,789,803,248.37/250,667.11
  6. Step 6: Final answer
    x = 222,565.31

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1.5x scale

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.