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Finding the Fourth Proportional to 109,692.56, 151,376.46 and 59,391.56

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Solution

The fourth proportional to 109,692.56, 151,376.46 and 59,391.56 is: 81,960.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,692.56 : 151,376.46 = 59,391.56 : x
  2. Step 2: Convert to fraction form
    109,692.56/151,376.46 = 59,391.56/x
  3. Step 3: Cross multiply
    109,692.56x = 151,376.46 × 59,391.56
  4. Step 4: Simplify right side
    109,692.56x = 8,990,484,106.68
  5. Step 5: Solve for x
    x = 8,990,484,106.68/109,692.56
  6. Step 6: Final answer
    x = 81,960.75

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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.