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Finding the Fourth Proportional to 92,874.72, 139,090.68 and 50,691.60

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Solution

The fourth proportional to 92,874.72, 139,090.68 and 50,691.60 is: 75,916.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,874.72 : 139,090.68 = 50,691.60 : x
  2. Step 2: Convert to fraction form
    92,874.72/139,090.68 = 50,691.60/x
  3. Step 3: Cross multiply
    92,874.72x = 139,090.68 × 50,691.60
  4. Step 4: Simplify right side
    92,874.72x = 7,050,729,114.29
  5. Step 5: Solve for x
    x = 7,050,729,114.29/92,874.72
  6. Step 6: Final answer
    x = 75,916.56

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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.