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Finding the Fourth Proportional to 123,469.14, 185,184.41 and 39,218.21

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Solution

The fourth proportional to 123,469.14, 185,184.41 and 39,218.21 is: 58,821.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,469.14 : 185,184.41 = 39,218.21 : x
  2. Step 2: Convert to fraction form
    123,469.14/185,184.41 = 39,218.21/x
  3. Step 3: Cross multiply
    123,469.14x = 185,184.41 × 39,218.21
  4. Step 4: Simplify right side
    123,469.14x = 7,262,601,346.98
  5. Step 5: Solve for x
    x = 7,262,601,346.98/123,469.14
  6. Step 6: Final answer
    x = 58,821.19

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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.