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Finding the Fourth Proportional to 443,785.80, 665,700.30 and 123,937.32

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Solution

The fourth proportional to 443,785.80, 665,700.30 and 123,937.32 is: 185,912.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,785.80 : 665,700.30 = 123,937.32 : x
  2. Step 2: Convert to fraction form
    443,785.80/665,700.30 = 123,937.32/x
  3. Step 3: Cross multiply
    443,785.80x = 665,700.30 × 123,937.32
  4. Step 4: Simplify right side
    443,785.80x = 82,505,111,105.20
  5. Step 5: Solve for x
    x = 82,505,111,105.20/443,785.80
  6. Step 6: Final answer
    x = 185,912.01

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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.