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Finding the Fourth Proportional to 255,757.18, 352,936.82 and 141,040.66

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Solution

The fourth proportional to 255,757.18, 352,936.82 and 141,040.66 is: 194,631.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,757.18 : 352,936.82 = 141,040.66 : x
  2. Step 2: Convert to fraction form
    255,757.18/352,936.82 = 141,040.66/x
  3. Step 3: Cross multiply
    255,757.18x = 352,936.82 × 141,040.66
  4. Step 4: Simplify right side
    255,757.18x = 49,778,442,031.10
  5. Step 5: Solve for x
    x = 49,778,442,031.10/255,757.18
  6. Step 6: Final answer
    x = 194,631.65

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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.