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Finding the Fourth Proportional to 250,014.96, 345,028.91 and 136,837.71

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Solution

The fourth proportional to 250,014.96, 345,028.91 and 136,837.71 is: 188,840.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,014.96 : 345,028.91 = 136,837.71 : x
  2. Step 2: Convert to fraction form
    250,014.96/345,028.91 = 136,837.71/x
  3. Step 3: Cross multiply
    250,014.96x = 345,028.91 × 136,837.71
  4. Step 4: Simplify right side
    250,014.96x = 47,212,965,244.01
  5. Step 5: Solve for x
    x = 47,212,965,244.01/250,014.96
  6. Step 6: Final answer
    x = 188,840.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.