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Finding the Fourth Proportional to 61,365.68, 84,622.28 and 57,793.92

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Solution

The fourth proportional to 61,365.68, 84,622.28 and 57,793.92 is: 79,696.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,365.68 : 84,622.28 = 57,793.92 : x
  2. Step 2: Convert to fraction form
    61,365.68/84,622.28 = 57,793.92/x
  3. Step 3: Cross multiply
    61,365.68x = 84,622.28 × 57,793.92
  4. Step 4: Simplify right side
    61,365.68x = 4,890,653,280.54
  5. Step 5: Solve for x
    x = 4,890,653,280.54/61,365.68
  6. Step 6: Final answer
    x = 79,696.88

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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.