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Finding the Fourth Proportional to 219,735.33, 329,603.54 and 61,964.61

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Solution

The fourth proportional to 219,735.33, 329,603.54 and 61,964.61 is: 92,947.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,735.33 : 329,603.54 = 61,964.61 : x
  2. Step 2: Convert to fraction form
    219,735.33/329,603.54 = 61,964.61/x
  3. Step 3: Cross multiply
    219,735.33x = 329,603.54 × 61,964.61
  4. Step 4: Simplify right side
    219,735.33x = 20,423,754,500.90
  5. Step 5: Solve for x
    x = 20,423,754,500.90/219,735.33
  6. Step 6: Final answer
    x = 92,947.07

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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.