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Finding the Fourth Proportional to 61,843.36, 92,504.80 and 57,356.40

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Solution

The fourth proportional to 61,843.36, 92,504.80 and 57,356.40 is: 85,793.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,843.36 : 92,504.80 = 57,356.40 : x
  2. Step 2: Convert to fraction form
    61,843.36/92,504.80 = 57,356.40/x
  3. Step 3: Cross multiply
    61,843.36x = 92,504.80 × 57,356.40
  4. Step 4: Simplify right side
    61,843.36x = 5,305,742,310.72
  5. Step 5: Solve for x
    x = 5,305,742,310.72/61,843.36
  6. Step 6: Final answer
    x = 85,793.24

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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.