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Finding the Fourth Proportional to 225,665.74, 338,497.99 and 57,185.58

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Solution

The fourth proportional to 225,665.74, 338,497.99 and 57,185.58 is: 85,778.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,665.74 : 338,497.99 = 57,185.58 : x
  2. Step 2: Convert to fraction form
    225,665.74/338,497.99 = 57,185.58/x
  3. Step 3: Cross multiply
    225,665.74x = 338,497.99 × 57,185.58
  4. Step 4: Simplify right side
    225,665.74x = 19,357,203,886.98
  5. Step 5: Solve for x
    x = 19,357,203,886.98/225,665.74
  6. Step 6: Final answer
    x = 85,778.21

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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.