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Finding the Fourth Proportional to 94,356.80, 141,535.20 and 82,692.80

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Solution

The fourth proportional to 94,356.80, 141,535.20 and 82,692.80 is: 124,039.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,356.80 : 141,535.20 = 82,692.80 : x
  2. Step 2: Convert to fraction form
    94,356.80/141,535.20 = 82,692.80/x
  3. Step 3: Cross multiply
    94,356.80x = 141,535.20 × 82,692.80
  4. Step 4: Simplify right side
    94,356.80x = 11,703,941,986.56
  5. Step 5: Solve for x
    x = 11,703,941,986.56/94,356.80
  6. Step 6: Final answer
    x = 124,039.20

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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.