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Finding the Fourth Proportional to 141,361.81, 195,107.67 and 83,990.09

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Solution

The fourth proportional to 141,361.81, 195,107.67 and 83,990.09 is: 115,923.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,361.81 : 195,107.67 = 83,990.09 : x
  2. Step 2: Convert to fraction form
    141,361.81/195,107.67 = 83,990.09/x
  3. Step 3: Cross multiply
    141,361.81x = 195,107.67 × 83,990.09
  4. Step 4: Simplify right side
    141,361.81x = 16,387,111,250.76
  5. Step 5: Solve for x
    x = 16,387,111,250.76/141,361.81
  6. Step 6: Final answer
    x = 115,923.19

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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.