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Finding the Fourth Proportional to 307,371.36, 424,174.33 and 171,413.91

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Solution

The fourth proportional to 307,371.36, 424,174.33 and 171,413.91 is: 236,552.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,371.36 : 424,174.33 = 171,413.91 : x
  2. Step 2: Convert to fraction form
    307,371.36/424,174.33 = 171,413.91/x
  3. Step 3: Cross multiply
    307,371.36x = 424,174.33 × 171,413.91
  4. Step 4: Simplify right side
    307,371.36x = 72,709,378,306.06
  5. Step 5: Solve for x
    x = 72,709,378,306.06/307,371.36
  6. Step 6: Final answer
    x = 236,552.22

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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.