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Finding the Fourth Proportional to 269,145.90, 371,337.27 and 161,739.90

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Solution

The fourth proportional to 269,145.90, 371,337.27 and 161,739.90 is: 223,150.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,145.90 : 371,337.27 = 161,739.90 : x
  2. Step 2: Convert to fraction form
    269,145.90/371,337.27 = 161,739.90/x
  3. Step 3: Cross multiply
    269,145.90x = 371,337.27 × 161,739.90
  4. Step 4: Simplify right side
    269,145.90x = 60,060,052,916.07
  5. Step 5: Solve for x
    x = 60,060,052,916.07/269,145.90
  6. Step 6: Final answer
    x = 223,150.54

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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.