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Finding the Fourth Proportional to 177,412.80, 266,119.20 and 111,273.60

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Solution

The fourth proportional to 177,412.80, 266,119.20 and 111,273.60 is: 166,910.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,412.80 : 266,119.20 = 111,273.60 : x
  2. Step 2: Convert to fraction form
    177,412.80/266,119.20 = 111,273.60/x
  3. Step 3: Cross multiply
    177,412.80x = 266,119.20 × 111,273.60
  4. Step 4: Simplify right side
    177,412.80x = 29,612,041,413.12
  5. Step 5: Solve for x
    x = 29,612,041,413.12/177,412.80
  6. Step 6: Final answer
    x = 166,910.40

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1.5x scale

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.