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Finding the Fourth Proportional to 219,603.50, 329,405.25 and 69,844.10

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Solution

The fourth proportional to 219,603.50, 329,405.25 and 69,844.10 is: 104,766.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,603.50 : 329,405.25 = 69,844.10 : x
  2. Step 2: Convert to fraction form
    219,603.50/329,405.25 = 69,844.10/x
  3. Step 3: Cross multiply
    219,603.50x = 329,405.25 × 69,844.10
  4. Step 4: Simplify right side
    219,603.50x = 23,007,013,221.53
  5. Step 5: Solve for x
    x = 23,007,013,221.53/219,603.50
  6. Step 6: Final answer
    x = 104,766.15

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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.