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Finding the Fourth Proportional to 207,015.30, 310,413.60 and 88,552.80

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Solution

The fourth proportional to 207,015.30, 310,413.60 and 88,552.80 is: 132,782.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,015.30 : 310,413.60 = 88,552.80 : x
  2. Step 2: Convert to fraction form
    207,015.30/310,413.60 = 88,552.80/x
  3. Step 3: Cross multiply
    207,015.30x = 310,413.60 × 88,552.80
  4. Step 4: Simplify right side
    207,015.30x = 27,487,993,438.08
  5. Step 5: Solve for x
    x = 27,487,993,438.08/207,015.30
  6. Step 6: Final answer
    x = 132,782.42

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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.