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Finding the Fourth Proportional to 83,355.84, 124,897.44 and 80,245.44

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Solution

The fourth proportional to 83,355.84, 124,897.44 and 80,245.44 is: 120,236.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,355.84 : 124,897.44 = 80,245.44 : x
  2. Step 2: Convert to fraction form
    83,355.84/124,897.44 = 80,245.44/x
  3. Step 3: Cross multiply
    83,355.84x = 124,897.44 × 80,245.44
  4. Step 4: Simplify right side
    83,355.84x = 10,022,450,027.67
  5. Step 5: Solve for x
    x = 10,022,450,027.67/83,355.84
  6. Step 6: Final answer
    x = 120,236.93

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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.