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Finding the Fourth Proportional to 124,260.48, 186,413.81 and 112,992.57

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Solution

The fourth proportional to 124,260.48, 186,413.81 and 112,992.57 is: 169,509.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,260.48 : 186,413.81 = 112,992.57 : x
  2. Step 2: Convert to fraction form
    124,260.48/186,413.81 = 112,992.57/x
  3. Step 3: Cross multiply
    124,260.48x = 186,413.81 × 112,992.57
  4. Step 4: Simplify right side
    124,260.48x = 21,063,374,910.43
  5. Step 5: Solve for x
    x = 21,063,374,910.43/124,260.48
  6. Step 6: Final answer
    x = 169,509.85

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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.