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Finding the Fourth Proportional to 168,686.55, 253,025.78 and 54,834.21

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Solution

The fourth proportional to 168,686.55, 253,025.78 and 54,834.21 is: 82,250.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,686.55 : 253,025.78 = 54,834.21 : x
  2. Step 2: Convert to fraction form
    168,686.55/253,025.78 = 54,834.21/x
  3. Step 3: Cross multiply
    168,686.55x = 253,025.78 × 54,834.21
  4. Step 4: Simplify right side
    168,686.55x = 13,874,468,481.76
  5. Step 5: Solve for x
    x = 13,874,468,481.76/168,686.55
  6. Step 6: Final answer
    x = 82,250.00

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1.5x scale

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.