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Finding the Fourth Proportional to 193,740.88, 290,743.58 and 67,379.88

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Solution

The fourth proportional to 193,740.88, 290,743.58 and 67,379.88 is: 101,115.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,740.88 : 290,743.58 = 67,379.88 : x
  2. Step 2: Convert to fraction form
    193,740.88/290,743.58 = 67,379.88/x
  3. Step 3: Cross multiply
    193,740.88x = 290,743.58 × 67,379.88
  4. Step 4: Simplify right side
    193,740.88x = 19,590,267,531.17
  5. Step 5: Solve for x
    x = 19,590,267,531.17/193,740.88
  6. Step 6: Final answer
    x = 101,115.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.