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Finding the Fourth Proportional to 220,413.98, 330,652.10 and 70,619.22

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Solution

The fourth proportional to 220,413.98, 330,652.10 and 70,619.22 is: 105,938.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,413.98 : 330,652.10 = 70,619.22 : x
  2. Step 2: Convert to fraction form
    220,413.98/330,652.10 = 70,619.22/x
  3. Step 3: Cross multiply
    220,413.98x = 330,652.10 × 70,619.22
  4. Step 4: Simplify right side
    220,413.98x = 23,350,393,393.36
  5. Step 5: Solve for x
    x = 23,350,393,393.36/220,413.98
  6. Step 6: Final answer
    x = 105,938.80

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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.