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Finding the Fourth Proportional to 219,898.92, 303,451.20 and 124,407.24

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Solution

The fourth proportional to 219,898.92, 303,451.20 and 124,407.24 is: 171,676.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,898.92 : 303,451.20 = 124,407.24 : x
  2. Step 2: Convert to fraction form
    219,898.92/303,451.20 = 124,407.24/x
  3. Step 3: Cross multiply
    219,898.92x = 303,451.20 × 124,407.24
  4. Step 4: Simplify right side
    219,898.92x = 37,751,526,266.69
  5. Step 5: Solve for x
    x = 37,751,526,266.69/219,898.92
  6. Step 6: Final answer
    x = 171,676.72

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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.