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Finding the Fourth Proportional to 219,752, 329,611.44 and 69,986.24

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Solution

The fourth proportional to 219,752, 329,611.44 and 69,986.24 is: 104,974.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,752 : 329,611.44 = 69,986.24 : x
  2. Step 2: Convert to fraction form
    219,752/329,611.44 = 69,986.24/x
  3. Step 3: Cross multiply
    219,752x = 329,611.44 × 69,986.24
  4. Step 4: Simplify right side
    219,752x = 23,068,265,346.59
  5. Step 5: Solve for x
    x = 23,068,265,346.59/219,752
  6. Step 6: Final answer
    x = 104,974.09

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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.