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Finding the Fourth Proportional to 213,504.39, 320,251.46 and 69,410.03

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Solution

The fourth proportional to 213,504.39, 320,251.46 and 69,410.03 is: 104,113.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,504.39 : 320,251.46 = 69,410.03 : x
  2. Step 2: Convert to fraction form
    213,504.39/320,251.46 = 69,410.03/x
  3. Step 3: Cross multiply
    213,504.39x = 320,251.46 × 69,410.03
  4. Step 4: Simplify right side
    213,504.39x = 22,228,663,446.14
  5. Step 5: Solve for x
    x = 22,228,663,446.14/213,504.39
  6. Step 6: Final answer
    x = 104,113.38

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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.