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Finding the Fourth Proportional to 223,766.31, 308,797.52 and 123,164.31

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Solution

The fourth proportional to 223,766.31, 308,797.52 and 123,164.31 is: 169,966.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,766.31 : 308,797.52 = 123,164.31 : x
  2. Step 2: Convert to fraction form
    223,766.31/308,797.52 = 123,164.31/x
  3. Step 3: Cross multiply
    223,766.31x = 308,797.52 × 123,164.31
  4. Step 4: Simplify right side
    223,766.31x = 38,032,833,480.51
  5. Step 5: Solve for x
    x = 38,032,833,480.51/223,766.31
  6. Step 6: Final answer
    x = 169,966.75

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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.