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Finding the Fourth Proportional to 193,870.67, 290,806.13 and 60,761.21

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Solution

The fourth proportional to 193,870.67, 290,806.13 and 60,761.21 is: 91,141.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,870.67 : 290,806.13 = 60,761.21 : x
  2. Step 2: Convert to fraction form
    193,870.67/290,806.13 = 60,761.21/x
  3. Step 3: Cross multiply
    193,870.67x = 290,806.13 × 60,761.21
  4. Step 4: Simplify right side
    193,870.67x = 17,669,731,032.09
  5. Step 5: Solve for x
    x = 17,669,731,032.09/193,870.67
  6. Step 6: Final answer
    x = 91,141.85

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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.