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Finding the Fourth Proportional to 269,431.52, 371,661.16 and 168,654.56

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Solution

The fourth proportional to 269,431.52, 371,661.16 and 168,654.56 is: 232,646.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,431.52 : 371,661.16 = 168,654.56 : x
  2. Step 2: Convert to fraction form
    269,431.52/371,661.16 = 168,654.56/x
  3. Step 3: Cross multiply
    269,431.52x = 371,661.16 × 168,654.56
  4. Step 4: Simplify right side
    269,431.52x = 62,682,349,408.89
  5. Step 5: Solve for x
    x = 62,682,349,408.89/269,431.52
  6. Step 6: Final answer
    x = 232,646.68

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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.