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Finding the Fourth Proportional to 219,881.40, 329,822.10 and 196,553.40

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Solution

The fourth proportional to 219,881.40, 329,822.10 and 196,553.40 is: 294,830.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,881.40 : 329,822.10 = 196,553.40 : x
  2. Step 2: Convert to fraction form
    219,881.40/329,822.10 = 196,553.40/x
  3. Step 3: Cross multiply
    219,881.40x = 329,822.10 × 196,553.40
  4. Step 4: Simplify right side
    219,881.40x = 64,827,655,150.14
  5. Step 5: Solve for x
    x = 64,827,655,150.14/219,881.40
  6. Step 6: Final answer
    x = 294,830.10

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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.