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Finding the Fourth Proportional to 220,992.56, 304,935.60 and 124,177.28

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Solution

The fourth proportional to 220,992.56, 304,935.60 and 124,177.28 is: 171,345.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,992.56 : 304,935.60 = 124,177.28 : x
  2. Step 2: Convert to fraction form
    220,992.56/304,935.60 = 124,177.28/x
  3. Step 3: Cross multiply
    220,992.56x = 304,935.60 × 124,177.28
  4. Step 4: Simplify right side
    220,992.56x = 37,866,073,383.17
  5. Step 5: Solve for x
    x = 37,866,073,383.17/220,992.56
  6. Step 6: Final answer
    x = 171,345.47

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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.