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Finding the Fourth Proportional to 61,406.03, 84,739.73 and 34,181.68

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Solution

The fourth proportional to 61,406.03, 84,739.73 and 34,181.68 is: 47,170.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,406.03 : 84,739.73 = 34,181.68 : x
  2. Step 2: Convert to fraction form
    61,406.03/84,739.73 = 34,181.68/x
  3. Step 3: Cross multiply
    61,406.03x = 84,739.73 × 34,181.68
  4. Step 4: Simplify right side
    61,406.03x = 2,896,546,533.97
  5. Step 5: Solve for x
    x = 2,896,546,533.97/61,406.03
  6. Step 6: Final answer
    x = 47,170.39

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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.