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Finding the Fourth Proportional to 147,526.80, 220,998.60 and 80,847.60

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Solution

The fourth proportional to 147,526.80, 220,998.60 and 80,847.60 is: 121,111.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,526.80 : 220,998.60 = 80,847.60 : x
  2. Step 2: Convert to fraction form
    147,526.80/220,998.60 = 80,847.60/x
  3. Step 3: Cross multiply
    147,526.80x = 220,998.60 × 80,847.60
  4. Step 4: Simplify right side
    147,526.80x = 17,867,206,413.36
  5. Step 5: Solve for x
    x = 17,867,206,413.36/147,526.80
  6. Step 6: Final answer
    x = 121,111.60

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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.