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Finding the Fourth Proportional to 81,871.17, 112,974.21 and 46,060.41

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Solution

The fourth proportional to 81,871.17, 112,974.21 and 46,060.41 is: 63,558.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,871.17 : 112,974.21 = 46,060.41 : x
  2. Step 2: Convert to fraction form
    81,871.17/112,974.21 = 46,060.41/x
  3. Step 3: Cross multiply
    81,871.17x = 112,974.21 × 46,060.41
  4. Step 4: Simplify right side
    81,871.17x = 5,203,638,432.03
  5. Step 5: Solve for x
    x = 5,203,638,432.03/81,871.17
  6. Step 6: Final answer
    x = 63,558.86

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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.