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Finding the Fourth Proportional to 225,969.15, 338,955.66 and 57,489.66

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Solution

The fourth proportional to 225,969.15, 338,955.66 and 57,489.66 is: 86,234.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,969.15 : 338,955.66 = 57,489.66 : x
  2. Step 2: Convert to fraction form
    225,969.15/338,955.66 = 57,489.66/x
  3. Step 3: Cross multiply
    225,969.15x = 338,955.66 × 57,489.66
  4. Step 4: Simplify right side
    225,969.15x = 19,486,445,648.48
  5. Step 5: Solve for x
    x = 19,486,445,648.48/225,969.15
  6. Step 6: Final answer
    x = 86,234.98

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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.