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Finding the Fourth Proportional to 161,795.46, 242,676.78 and 43,451.42

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Solution

The fourth proportional to 161,795.46, 242,676.78 and 43,451.42 is: 65,172.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,795.46 : 242,676.78 = 43,451.42 : x
  2. Step 2: Convert to fraction form
    161,795.46/242,676.78 = 43,451.42/x
  3. Step 3: Cross multiply
    161,795.46x = 242,676.78 × 43,451.42
  4. Step 4: Simplify right side
    161,795.46x = 10,544,650,085.34
  5. Step 5: Solve for x
    x = 10,544,650,085.34/161,795.46
  6. Step 6: Final answer
    x = 65,172.72

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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.