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Finding the Fourth Proportional to 216,833.04, 299,190.24 and 124,938

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Solution

The fourth proportional to 216,833.04, 299,190.24 and 124,938 is: 172,391.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,833.04 : 299,190.24 = 124,938 : x
  2. Step 2: Convert to fraction form
    216,833.04/299,190.24 = 124,938/x
  3. Step 3: Cross multiply
    216,833.04x = 299,190.24 × 124,938
  4. Step 4: Simplify right side
    216,833.04x = 37,380,230,205.12
  5. Step 5: Solve for x
    x = 37,380,230,205.12/216,833.04
  6. Step 6: Final answer
    x = 172,391.76

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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.