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Finding the Fourth Proportional to 92,738.96, 139,014.95 and 36,557.31

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Solution

The fourth proportional to 92,738.96, 139,014.95 and 36,557.31 is: 54,799.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,738.96 : 139,014.95 = 36,557.31 : x
  2. Step 2: Convert to fraction form
    92,738.96/139,014.95 = 36,557.31/x
  3. Step 3: Cross multiply
    92,738.96x = 139,014.95 × 36,557.31
  4. Step 4: Simplify right side
    92,738.96x = 5,082,012,960.30
  5. Step 5: Solve for x
    x = 5,082,012,960.30/92,738.96
  6. Step 6: Final answer
    x = 54,799.12

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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.