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Finding the Fourth Proportional to 92,728.64, 139,104.11 and 32,744.77

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Solution

The fourth proportional to 92,728.64, 139,104.11 and 32,744.77 is: 49,121.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,728.64 : 139,104.11 = 32,744.77 : x
  2. Step 2: Convert to fraction form
    92,728.64/139,104.11 = 32,744.77/x
  3. Step 3: Cross multiply
    92,728.64x = 139,104.11 × 32,744.77
  4. Step 4: Simplify right side
    92,728.64x = 4,554,931,576.52
  5. Step 5: Solve for x
    x = 4,554,931,576.52/92,728.64
  6. Step 6: Final answer
    x = 49,121.09

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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.