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Finding the Fourth Proportional to 219,203.40, 329,150.70 and 125,891.40

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Solution

The fourth proportional to 219,203.40, 329,150.70 and 125,891.40 is: 189,035.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,203.40 : 329,150.70 = 125,891.40 : x
  2. Step 2: Convert to fraction form
    219,203.40/329,150.70 = 125,891.40/x
  3. Step 3: Cross multiply
    219,203.40x = 329,150.70 × 125,891.40
  4. Step 4: Simplify right side
    219,203.40x = 41,437,242,433.98
  5. Step 5: Solve for x
    x = 41,437,242,433.98/219,203.40
  6. Step 6: Final answer
    x = 189,035.58

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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.