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Finding the Fourth Proportional to 141,119.97, 194,745.51 and 77,457.62

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Solution

The fourth proportional to 141,119.97, 194,745.51 and 77,457.62 is: 106,891.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,119.97 : 194,745.51 = 77,457.62 : x
  2. Step 2: Convert to fraction form
    141,119.97/194,745.51 = 77,457.62/x
  3. Step 3: Cross multiply
    141,119.97x = 194,745.51 × 77,457.62
  4. Step 4: Simplify right side
    141,119.97x = 15,084,522,736.56
  5. Step 5: Solve for x
    x = 15,084,522,736.56/141,119.97
  6. Step 6: Final answer
    x = 106,891.48

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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.