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Finding the Fourth Proportional to 92,974.88, 139,383.72 and 40,344.56

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Solution

The fourth proportional to 92,974.88, 139,383.72 and 40,344.56 is: 60,482.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,974.88 : 139,383.72 = 40,344.56 : x
  2. Step 2: Convert to fraction form
    92,974.88/139,383.72 = 40,344.56/x
  3. Step 3: Cross multiply
    92,974.88x = 139,383.72 × 40,344.56
  4. Step 4: Simplify right side
    92,974.88x = 5,623,374,854.56
  5. Step 5: Solve for x
    x = 5,623,374,854.56/92,974.88
  6. Step 6: Final answer
    x = 60,482.73

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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.