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Finding the Fourth Proportional to 92,315.91, 127,395.80 and 49,874.31

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Solution

The fourth proportional to 92,315.91, 127,395.80 and 49,874.31 is: 68,826.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,315.91 : 127,395.80 = 49,874.31 : x
  2. Step 2: Convert to fraction form
    92,315.91/127,395.80 = 49,874.31/x
  3. Step 3: Cross multiply
    92,315.91x = 127,395.80 × 49,874.31
  4. Step 4: Simplify right side
    92,315.91x = 6,353,777,372.53
  5. Step 5: Solve for x
    x = 6,353,777,372.53/92,315.91
  6. Step 6: Final answer
    x = 68,826.46

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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.