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Finding the Fourth Proportional to 92,717.92, 139,087.74 and 29,515.90

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Solution

The fourth proportional to 92,717.92, 139,087.74 and 29,515.90 is: 44,277.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,717.92 : 139,087.74 = 29,515.90 : x
  2. Step 2: Convert to fraction form
    92,717.92/139,087.74 = 29,515.90/x
  3. Step 3: Cross multiply
    92,717.92x = 139,087.74 × 29,515.90
  4. Step 4: Simplify right side
    92,717.92x = 4,105,299,403.56
  5. Step 5: Solve for x
    x = 4,105,299,403.56/92,717.92
  6. Step 6: Final answer
    x = 44,277.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.