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Finding the Fourth Proportional to 237,138.54, 355,726.33 and 68,661.37

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Solution

The fourth proportional to 237,138.54, 355,726.33 and 68,661.37 is: 102,997.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,138.54 : 355,726.33 = 68,661.37 : x
  2. Step 2: Convert to fraction form
    237,138.54/355,726.33 = 68,661.37/x
  3. Step 3: Cross multiply
    237,138.54x = 355,726.33 × 68,661.37
  4. Step 4: Simplify right side
    237,138.54x = 24,424,657,822.10
  5. Step 5: Solve for x
    x = 24,424,657,822.10/237,138.54
  6. Step 6: Final answer
    x = 102,997.42

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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.