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Finding the Fourth Proportional to 220,486.66, 304,443.16 and 169,418.39

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Solution

The fourth proportional to 220,486.66, 304,443.16 and 169,418.39 is: 233,929.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,486.66 : 304,443.16 = 169,418.39 : x
  2. Step 2: Convert to fraction form
    220,486.66/304,443.16 = 169,418.39/x
  3. Step 3: Cross multiply
    220,486.66x = 304,443.16 × 169,418.39
  4. Step 4: Simplify right side
    220,486.66x = 51,578,268,067.95
  5. Step 5: Solve for x
    x = 51,578,268,067.95/220,486.66
  6. Step 6: Final answer
    x = 233,929.20

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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.