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Finding the Fourth Proportional to 61,157.36, 84,388.52 and 35,671.44

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Solution

The fourth proportional to 61,157.36, 84,388.52 and 35,671.44 is: 49,221.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,157.36 : 84,388.52 = 35,671.44 : x
  2. Step 2: Convert to fraction form
    61,157.36/84,388.52 = 35,671.44/x
  3. Step 3: Cross multiply
    61,157.36x = 84,388.52 × 35,671.44
  4. Step 4: Simplify right side
    61,157.36x = 3,010,260,027.87
  5. Step 5: Solve for x
    x = 3,010,260,027.87/61,157.36
  6. Step 6: Final answer
    x = 49,221.55

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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.