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Finding the Fourth Proportional to 250,611.20, 375,986.22 and 115,716.47

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Solution

The fourth proportional to 250,611.20, 375,986.22 and 115,716.47 is: 173,606.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,611.20 : 375,986.22 = 115,716.47 : x
  2. Step 2: Convert to fraction form
    250,611.20/375,986.22 = 115,716.47/x
  3. Step 3: Cross multiply
    250,611.20x = 375,986.22 × 115,716.47
  4. Step 4: Simplify right side
    250,611.20x = 43,507,796,267.11
  5. Step 5: Solve for x
    x = 43,507,796,267.11/250,611.20
  6. Step 6: Final answer
    x = 173,606.75

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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.