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Finding the Fourth Proportional to 219,713.56, 329,553.60 and 69,958.60

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Solution

The fourth proportional to 219,713.56, 329,553.60 and 69,958.60 is: 104,932.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,713.56 : 329,553.60 = 69,958.60 : x
  2. Step 2: Convert to fraction form
    219,713.56/329,553.60 = 69,958.60/x
  3. Step 3: Cross multiply
    219,713.56x = 329,553.60 × 69,958.60
  4. Step 4: Simplify right side
    219,713.56x = 23,055,108,480.96
  5. Step 5: Solve for x
    x = 23,055,108,480.96/219,713.56
  6. Step 6: Final answer
    x = 104,932.57

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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.