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Finding the Fourth Proportional to 443,340.50, 665,104.26 and 143,797.81

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Solution

The fourth proportional to 443,340.50, 665,104.26 and 143,797.81 is: 215,727.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,340.50 : 665,104.26 = 143,797.81 : x
  2. Step 2: Convert to fraction form
    443,340.50/665,104.26 = 143,797.81/x
  3. Step 3: Cross multiply
    443,340.50x = 665,104.26 × 143,797.81
  4. Step 4: Simplify right side
    443,340.50x = 95,640,536,009.67
  5. Step 5: Solve for x
    x = 95,640,536,009.67/443,340.50
  6. Step 6: Final answer
    x = 215,727.05

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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.