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Finding the Fourth Proportional to 218,331.44, 301,294.29 and 122,837.90

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Solution

The fourth proportional to 218,331.44, 301,294.29 and 122,837.90 is: 169,514.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,331.44 : 301,294.29 = 122,837.90 : x
  2. Step 2: Convert to fraction form
    218,331.44/301,294.29 = 122,837.90/x
  3. Step 3: Cross multiply
    218,331.44x = 301,294.29 × 122,837.90
  4. Step 4: Simplify right side
    218,331.44x = 37,010,357,865.59
  5. Step 5: Solve for x
    x = 37,010,357,865.59/218,331.44
  6. Step 6: Final answer
    x = 169,514.56

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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.