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Finding the Fourth Proportional to 219,964.40, 329,363.40 and 173,308.40

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Solution

The fourth proportional to 219,964.40, 329,363.40 and 173,308.40 is: 259,503.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,964.40 : 329,363.40 = 173,308.40 : x
  2. Step 2: Convert to fraction form
    219,964.40/329,363.40 = 173,308.40/x
  3. Step 3: Cross multiply
    219,964.40x = 329,363.40 × 173,308.40
  4. Step 4: Simplify right side
    219,964.40x = 57,081,443,872.56
  5. Step 5: Solve for x
    x = 57,081,443,872.56/219,964.40
  6. Step 6: Final answer
    x = 259,503.10

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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.