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Finding the Fourth Proportional to 269,681.67, 404,393.25 and 127,408.51

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Solution

The fourth proportional to 269,681.67, 404,393.25 and 127,408.51 is: 191,051.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,681.67 : 404,393.25 = 127,408.51 : x
  2. Step 2: Convert to fraction form
    269,681.67/404,393.25 = 127,408.51/x
  3. Step 3: Cross multiply
    269,681.67x = 404,393.25 × 127,408.51
  4. Step 4: Simplify right side
    269,681.67x = 51,523,141,436.56
  5. Step 5: Solve for x
    x = 51,523,141,436.56/269,681.67
  6. Step 6: Final answer
    x = 191,051.70

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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.