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Finding the Fourth Proportional to 188,335.04, 259,793.79 and 112,839.80

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Solution

The fourth proportional to 188,335.04, 259,793.79 and 112,839.80 is: 155,653.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,335.04 : 259,793.79 = 112,839.80 : x
  2. Step 2: Convert to fraction form
    188,335.04/259,793.79 = 112,839.80/x
  3. Step 3: Cross multiply
    188,335.04x = 259,793.79 × 112,839.80
  4. Step 4: Simplify right side
    188,335.04x = 29,315,079,304.84
  5. Step 5: Solve for x
    x = 29,315,079,304.84/188,335.04
  6. Step 6: Final answer
    x = 155,653.88

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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.