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Finding the Fourth Proportional to 61,754.66, 85,221.45 and 33,460.36

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Solution

The fourth proportional to 61,754.66, 85,221.45 and 33,460.36 is: 46,175.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,754.66 : 85,221.45 = 33,460.36 : x
  2. Step 2: Convert to fraction form
    61,754.66/85,221.45 = 33,460.36/x
  3. Step 3: Cross multiply
    61,754.66x = 85,221.45 × 33,460.36
  4. Step 4: Simplify right side
    61,754.66x = 2,851,540,396.72
  5. Step 5: Solve for x
    x = 2,851,540,396.72/61,754.66
  6. Step 6: Final answer
    x = 46,175.31

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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.