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Finding the Fourth Proportional to 123,651.99, 185,492.70 and 39,382.56

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Solution

The fourth proportional to 123,651.99, 185,492.70 and 39,382.56 is: 59,078.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,651.99 : 185,492.70 = 39,382.56 : x
  2. Step 2: Convert to fraction form
    123,651.99/185,492.70 = 39,382.56/x
  3. Step 3: Cross multiply
    123,651.99x = 185,492.70 × 39,382.56
  4. Step 4: Simplify right side
    123,651.99x = 7,305,177,387.31
  5. Step 5: Solve for x
    x = 7,305,177,387.31/123,651.99
  6. Step 6: Final answer
    x = 59,078.53

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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.