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Finding the Fourth Proportional to 222,283.97, 306,751.92 and 121,681.97

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Solution

The fourth proportional to 222,283.97, 306,751.92 and 121,681.97 is: 167,921.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,283.97 : 306,751.92 = 121,681.97 : x
  2. Step 2: Convert to fraction form
    222,283.97/306,751.92 = 121,681.97/x
  3. Step 3: Cross multiply
    222,283.97x = 306,751.92 × 121,681.97
  4. Step 4: Simplify right side
    222,283.97x = 37,326,177,926.88
  5. Step 5: Solve for x
    x = 37,326,177,926.88/222,283.97
  6. Step 6: Final answer
    x = 167,921.14

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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.