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Finding the Fourth Proportional to 202,221.40, 303,332.10 and 69,069.55

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Solution

The fourth proportional to 202,221.40, 303,332.10 and 69,069.55 is: 103,604.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,221.40 : 303,332.10 = 69,069.55 : x
  2. Step 2: Convert to fraction form
    202,221.40/303,332.10 = 69,069.55/x
  3. Step 3: Cross multiply
    202,221.40x = 303,332.10 × 69,069.55
  4. Step 4: Simplify right side
    202,221.40x = 20,951,011,647.56
  5. Step 5: Solve for x
    x = 20,951,011,647.56/202,221.40
  6. Step 6: Final answer
    x = 103,604.33

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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.