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Finding the Fourth Proportional to 225,096.78, 337,645.74 and 91,977.03

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Solution

The fourth proportional to 225,096.78, 337,645.74 and 91,977.03 is: 137,965.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,096.78 : 337,645.74 = 91,977.03 : x
  2. Step 2: Convert to fraction form
    225,096.78/337,645.74 = 91,977.03/x
  3. Step 3: Cross multiply
    225,096.78x = 337,645.74 × 91,977.03
  4. Step 4: Simplify right side
    225,096.78x = 31,055,653,695.71
  5. Step 5: Solve for x
    x = 31,055,653,695.71/225,096.78
  6. Step 6: Final answer
    x = 137,965.79

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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.