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Finding the Fourth Proportional to 168,205.71, 252,413.62 and 68,365.87

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Solution

The fourth proportional to 168,205.71, 252,413.62 and 68,365.87 is: 102,591.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,205.71 : 252,413.62 = 68,365.87 : x
  2. Step 2: Convert to fraction form
    168,205.71/252,413.62 = 68,365.87/x
  3. Step 3: Cross multiply
    168,205.71x = 252,413.62 × 68,365.87
  4. Step 4: Simplify right side
    168,205.71x = 17,256,477,349.03
  5. Step 5: Solve for x
    x = 17,256,477,349.03/168,205.71
  6. Step 6: Final answer
    x = 102,591.51

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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.