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Finding the Fourth Proportional to 400,761.21, 601,160.49 and 223,134.43

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Solution

The fourth proportional to 400,761.21, 601,160.49 and 223,134.43 is: 334,712.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,761.21 : 601,160.49 = 223,134.43 : x
  2. Step 2: Convert to fraction form
    400,761.21/601,160.49 = 223,134.43/x
  3. Step 3: Cross multiply
    400,761.21x = 601,160.49 × 223,134.43
  4. Step 4: Simplify right side
    400,761.21x = 134,139,603,274.67
  5. Step 5: Solve for x
    x = 134,139,603,274.67/400,761.21
  6. Step 6: Final answer
    x = 334,712.04

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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.