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Finding the Fourth Proportional to 169,442.59, 253,998.63 and 80,672.26

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Solution

The fourth proportional to 169,442.59, 253,998.63 and 80,672.26 is: 120,929.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,442.59 : 253,998.63 = 80,672.26 : x
  2. Step 2: Convert to fraction form
    169,442.59/253,998.63 = 80,672.26/x
  3. Step 3: Cross multiply
    169,442.59x = 253,998.63 × 80,672.26
  4. Step 4: Simplify right side
    169,442.59x = 20,490,643,519.00
  5. Step 5: Solve for x
    x = 20,490,643,519.00/169,442.59
  6. Step 6: Final answer
    x = 120,929.71

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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.