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Finding the Fourth Proportional to 61,754.82, 85,221.71 and 33,460.51

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Solution

The fourth proportional to 61,754.82, 85,221.71 and 33,460.51 is: 46,175.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,754.82 : 85,221.71 = 33,460.51 : x
  2. Step 2: Convert to fraction form
    61,754.82/85,221.71 = 33,460.51/x
  3. Step 3: Cross multiply
    61,754.82x = 85,221.71 × 33,460.51
  4. Step 4: Simplify right side
    61,754.82x = 2,851,561,879.67
  5. Step 5: Solve for x
    x = 2,851,561,879.67/61,754.82
  6. Step 6: Final answer
    x = 46,175.54

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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.