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Finding the Fourth Proportional to 219,511.76, 329,233.16 and 69,732.32

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Solution

The fourth proportional to 219,511.76, 329,233.16 and 69,732.32 is: 104,587.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,511.76 : 329,233.16 = 69,732.32 : x
  2. Step 2: Convert to fraction form
    219,511.76/329,233.16 = 69,732.32/x
  3. Step 3: Cross multiply
    219,511.76x = 329,233.16 × 69,732.32
  4. Step 4: Simplify right side
    219,511.76x = 22,958,192,067.73
  5. Step 5: Solve for x
    x = 22,958,192,067.73/219,511.76
  6. Step 6: Final answer
    x = 104,587.53

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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.