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Finding the Fourth Proportional to 73,123.04, 100,910.22 and 39,589.04

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Solution

The fourth proportional to 73,123.04, 100,910.22 and 39,589.04 is: 54,633.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,123.04 : 100,910.22 = 39,589.04 : x
  2. Step 2: Convert to fraction form
    73,123.04/100,910.22 = 39,589.04/x
  3. Step 3: Cross multiply
    73,123.04x = 100,910.22 × 39,589.04
  4. Step 4: Simplify right side
    73,123.04x = 3,994,938,735.99
  5. Step 5: Solve for x
    x = 3,994,938,735.99/73,123.04
  6. Step 6: Final answer
    x = 54,633.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.