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Finding the Fourth Proportional to 219,633.53, 329,105.70 and 130,838.49

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Solution

The fourth proportional to 219,633.53, 329,105.70 and 130,838.49 is: 196,052.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,633.53 : 329,105.70 = 130,838.49 : x
  2. Step 2: Convert to fraction form
    219,633.53/329,105.70 = 130,838.49/x
  3. Step 3: Cross multiply
    219,633.53x = 329,105.70 × 130,838.49
  4. Step 4: Simplify right side
    219,633.53x = 43,059,692,838.39
  5. Step 5: Solve for x
    x = 43,059,692,838.39/219,633.53
  6. Step 6: Final answer
    x = 196,052.46

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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.