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Finding the Fourth Proportional to 61,942.46, 85,478.64 and 35,087.46

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Solution

The fourth proportional to 61,942.46, 85,478.64 and 35,087.46 is: 48,419.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,942.46 : 85,478.64 = 35,087.46 : x
  2. Step 2: Convert to fraction form
    61,942.46/85,478.64 = 35,087.46/x
  3. Step 3: Cross multiply
    61,942.46x = 85,478.64 × 35,087.46
  4. Step 4: Simplify right side
    61,942.46x = 2,999,228,361.85
  5. Step 5: Solve for x
    x = 2,999,228,361.85/61,942.46
  6. Step 6: Final answer
    x = 48,419.59

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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.