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Finding the Fourth Proportional to 222,126.89, 306,542.14 and 121,524.89

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Solution

The fourth proportional to 222,126.89, 306,542.14 and 121,524.89 is: 167,708.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,126.89 : 306,542.14 = 121,524.89 : x
  2. Step 2: Convert to fraction form
    222,126.89/306,542.14 = 121,524.89/x
  3. Step 3: Cross multiply
    222,126.89x = 306,542.14 × 121,524.89
  4. Step 4: Simplify right side
    222,126.89x = 37,252,498,007.34
  5. Step 5: Solve for x
    x = 37,252,498,007.34/222,126.89
  6. Step 6: Final answer
    x = 167,708.19

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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.