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Finding the Fourth Proportional to 248,563.80, 343,145.34 and 168,413.40

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Solution

The fourth proportional to 248,563.80, 343,145.34 and 168,413.40 is: 232,496.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,563.80 : 343,145.34 = 168,413.40 : x
  2. Step 2: Convert to fraction form
    248,563.80/343,145.34 = 168,413.40/x
  3. Step 3: Cross multiply
    248,563.80x = 343,145.34 × 168,413.40
  4. Step 4: Simplify right side
    248,563.80x = 57,790,273,403.56
  5. Step 5: Solve for x
    x = 57,790,273,403.56/248,563.80
  6. Step 6: Final answer
    x = 232,496.74

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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.