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Finding the Fourth Proportional to 234,131.90, 351,055.62 and 91,806.65

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Solution

The fourth proportional to 234,131.90, 351,055.62 and 91,806.65 is: 137,654.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,131.90 : 351,055.62 = 91,806.65 : x
  2. Step 2: Convert to fraction form
    234,131.90/351,055.62 = 91,806.65/x
  3. Step 3: Cross multiply
    234,131.90x = 351,055.62 × 91,806.65
  4. Step 4: Simplify right side
    234,131.90x = 32,229,240,435.87
  5. Step 5: Solve for x
    x = 32,229,240,435.87/234,131.90
  6. Step 6: Final answer
    x = 137,654.21

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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.