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Finding the Fourth Proportional to 220,661.55, 330,543.07 and 202,270.03

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Solution

The fourth proportional to 220,661.55, 330,543.07 and 202,270.03 is: 302,993.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,661.55 : 330,543.07 = 202,270.03 : x
  2. Step 2: Convert to fraction form
    220,661.55/330,543.07 = 202,270.03/x
  3. Step 3: Cross multiply
    220,661.55x = 330,543.07 × 202,270.03
  4. Step 4: Simplify right side
    220,661.55x = 66,858,955,353.16
  5. Step 5: Solve for x
    x = 66,858,955,353.16/220,661.55
  6. Step 6: Final answer
    x = 302,993.23

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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.