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Finding the Fourth Proportional to 167,410.25, 231,028.56 and 90,929.64

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Solution

The fourth proportional to 167,410.25, 231,028.56 and 90,929.64 is: 125,484.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,410.25 : 231,028.56 = 90,929.64 : x
  2. Step 2: Convert to fraction form
    167,410.25/231,028.56 = 90,929.64/x
  3. Step 3: Cross multiply
    167,410.25x = 231,028.56 × 90,929.64
  4. Step 4: Simplify right side
    167,410.25x = 21,007,343,790.52
  5. Step 5: Solve for x
    x = 21,007,343,790.52/167,410.25
  6. Step 6: Final answer
    x = 125,484.22

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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.