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Finding the Fourth Proportional to 161,795.21, 242,676.41 and 43,451.17

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Solution

The fourth proportional to 161,795.21, 242,676.41 and 43,451.17 is: 65,172.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,795.21 : 242,676.41 = 43,451.17 : x
  2. Step 2: Convert to fraction form
    161,795.21/242,676.41 = 43,451.17/x
  3. Step 3: Cross multiply
    161,795.21x = 242,676.41 × 43,451.17
  4. Step 4: Simplify right side
    161,795.21x = 10,544,573,121.95
  5. Step 5: Solve for x
    x = 10,544,573,121.95/161,795.21
  6. Step 6: Final answer
    x = 65,172.35

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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.