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Finding the Fourth Proportional to 216,354.10, 298,584.82 and 124,501.54

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Solution

The fourth proportional to 216,354.10, 298,584.82 and 124,501.54 is: 171,821.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,354.10 : 298,584.82 = 124,501.54 : x
  2. Step 2: Convert to fraction form
    216,354.10/298,584.82 = 124,501.54/x
  3. Step 3: Cross multiply
    216,354.10x = 298,584.82 × 124,501.54
  4. Step 4: Simplify right side
    216,354.10x = 37,174,269,910.62
  5. Step 5: Solve for x
    x = 37,174,269,910.62/216,354.10
  6. Step 6: Final answer
    x = 171,821.43

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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.