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Finding the Fourth Proportional to 89,859.93, 124,005.99 and 49,575.39

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Solution

The fourth proportional to 89,859.93, 124,005.99 and 49,575.39 is: 68,413.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,859.93 : 124,005.99 = 49,575.39 : x
  2. Step 2: Convert to fraction form
    89,859.93/124,005.99 = 49,575.39/x
  3. Step 3: Cross multiply
    89,859.93x = 124,005.99 × 49,575.39
  4. Step 4: Simplify right side
    89,859.93x = 6,147,645,456.14
  5. Step 5: Solve for x
    x = 6,147,645,456.14/89,859.93
  6. Step 6: Final answer
    x = 68,413.64

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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.