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Finding the Fourth Proportional to 168,266.99, 252,190 and 84,050.66

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Solution

The fourth proportional to 168,266.99, 252,190 and 84,050.66 is: 125,970.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,266.99 : 252,190 = 84,050.66 : x
  2. Step 2: Convert to fraction form
    168,266.99/252,190 = 84,050.66/x
  3. Step 3: Cross multiply
    168,266.99x = 252,190 × 84,050.66
  4. Step 4: Simplify right side
    168,266.99x = 21,196,735,945.40
  5. Step 5: Solve for x
    x = 21,196,735,945.40/168,266.99
  6. Step 6: Final answer
    x = 125,970.85

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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.