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Finding the Fourth Proportional to 61,906.30, 92,859.45 and 57,969.70

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Solution

The fourth proportional to 61,906.30, 92,859.45 and 57,969.70 is: 86,954.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,906.30 : 92,859.45 = 57,969.70 : x
  2. Step 2: Convert to fraction form
    61,906.30/92,859.45 = 57,969.70/x
  3. Step 3: Cross multiply
    61,906.30x = 92,859.45 × 57,969.70
  4. Step 4: Simplify right side
    61,906.30x = 5,383,034,458.67
  5. Step 5: Solve for x
    x = 5,383,034,458.67/61,906.30
  6. Step 6: Final answer
    x = 86,954.55

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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.