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Finding the Fourth Proportional to 92,690.16, 139,046.06 and 33,553.68

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Solution

The fourth proportional to 92,690.16, 139,046.06 and 33,553.68 is: 50,334.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,690.16 : 139,046.06 = 33,553.68 : x
  2. Step 2: Convert to fraction form
    92,690.16/139,046.06 = 33,553.68/x
  3. Step 3: Cross multiply
    92,690.16x = 139,046.06 × 33,553.68
  4. Step 4: Simplify right side
    92,690.16x = 4,665,506,834.73
  5. Step 5: Solve for x
    x = 4,665,506,834.73/92,690.16
  6. Step 6: Final answer
    x = 50,334.44

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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.