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Finding the Fourth Proportional to 61,718.58, 85,171.86 and 33,424.26

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Solution

The fourth proportional to 61,718.58, 85,171.86 and 33,424.26 is: 46,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,718.58 : 85,171.86 = 33,424.26 : x
  2. Step 2: Convert to fraction form
    61,718.58/85,171.86 = 33,424.26/x
  3. Step 3: Cross multiply
    61,718.58x = 85,171.86 × 33,424.26
  4. Step 4: Simplify right side
    61,718.58x = 2,846,806,393.32
  5. Step 5: Solve for x
    x = 2,846,806,393.32/61,718.58
  6. Step 6: Final answer
    x = 46,125.60

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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.