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Finding the Fourth Proportional to 219,646.62, 303,110.30 and 122,849.29

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Solution

The fourth proportional to 219,646.62, 303,110.30 and 122,849.29 is: 169,530.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,646.62 : 303,110.30 = 122,849.29 : x
  2. Step 2: Convert to fraction form
    219,646.62/303,110.30 = 122,849.29/x
  3. Step 3: Cross multiply
    219,646.62x = 303,110.30 × 122,849.29
  4. Step 4: Simplify right side
    219,646.62x = 37,236,885,832.70
  5. Step 5: Solve for x
    x = 37,236,885,832.70/219,646.62
  6. Step 6: Final answer
    x = 169,530.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.