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Finding the Fourth Proportional to 79,636.14, 109,902.96 and 47,361.96

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Solution

The fourth proportional to 79,636.14, 109,902.96 and 47,361.96 is: 65,362.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,636.14 : 109,902.96 = 47,361.96 : x
  2. Step 2: Convert to fraction form
    79,636.14/109,902.96 = 47,361.96/x
  3. Step 3: Cross multiply
    79,636.14x = 109,902.96 × 47,361.96
  4. Step 4: Simplify right side
    79,636.14x = 5,205,219,595.40
  5. Step 5: Solve for x
    x = 5,205,219,595.40/79,636.14
  6. Step 6: Final answer
    x = 65,362.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.