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Finding the Fourth Proportional to 216,537.48, 298,797.30 and 121,041

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Solution

The fourth proportional to 216,537.48, 298,797.30 and 121,041 is: 167,022.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,537.48 : 298,797.30 = 121,041 : x
  2. Step 2: Convert to fraction form
    216,537.48/298,797.30 = 121,041/x
  3. Step 3: Cross multiply
    216,537.48x = 298,797.30 × 121,041
  4. Step 4: Simplify right side
    216,537.48x = 36,166,723,989.30
  5. Step 5: Solve for x
    x = 36,166,723,989.30/216,537.48
  6. Step 6: Final answer
    x = 167,022.93

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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.