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Finding the Fourth Proportional to 172,846.64, 259,278.17 and 83,994.30

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Solution

The fourth proportional to 172,846.64, 259,278.17 and 83,994.30 is: 125,995.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,846.64 : 259,278.17 = 83,994.30 : x
  2. Step 2: Convert to fraction form
    172,846.64/259,278.17 = 83,994.30/x
  3. Step 3: Cross multiply
    172,846.64x = 259,278.17 × 83,994.30
  4. Step 4: Simplify right side
    172,846.64x = 21,777,887,974.46
  5. Step 5: Solve for x
    x = 21,777,887,974.46/172,846.64
  6. Step 6: Final answer
    x = 125,995.44

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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.