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Finding the Fourth Proportional to 111,611.66, 167,344.79 and 40,520.93

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Solution

The fourth proportional to 111,611.66, 167,344.79 and 40,520.93 is: 60,754.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,611.66 : 167,344.79 = 40,520.93 : x
  2. Step 2: Convert to fraction form
    111,611.66/167,344.79 = 40,520.93/x
  3. Step 3: Cross multiply
    111,611.66x = 167,344.79 × 40,520.93
  4. Step 4: Simplify right side
    111,611.66x = 6,780,965,482.13
  5. Step 5: Solve for x
    x = 6,780,965,482.13/111,611.66
  6. Step 6: Final answer
    x = 60,754.99

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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.