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Finding the Fourth Proportional to 250,172.73, 375,318.44 and 81,693.14

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Solution

The fourth proportional to 250,172.73, 375,318.44 and 81,693.14 is: 122,559.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,172.73 : 375,318.44 = 81,693.14 : x
  2. Step 2: Convert to fraction form
    250,172.73/375,318.44 = 81,693.14/x
  3. Step 3: Cross multiply
    250,172.73x = 375,318.44 × 81,693.14
  4. Step 4: Simplify right side
    250,172.73x = 30,660,939,578.44
  5. Step 5: Solve for x
    x = 30,660,939,578.44/250,172.73
  6. Step 6: Final answer
    x = 122,559.08

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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.