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Finding the Fourth Proportional to 166,945.20, 250,417.80 and 141,025.20

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Solution

The fourth proportional to 166,945.20, 250,417.80 and 141,025.20 is: 211,537.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,945.20 : 250,417.80 = 141,025.20 : x
  2. Step 2: Convert to fraction form
    166,945.20/250,417.80 = 141,025.20/x
  3. Step 3: Cross multiply
    166,945.20x = 250,417.80 × 141,025.20
  4. Step 4: Simplify right side
    166,945.20x = 35,315,220,328.56
  5. Step 5: Solve for x
    x = 35,315,220,328.56/166,945.20
  6. Step 6: Final answer
    x = 211,537.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.