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Finding the Fourth Proportional to 92,916.50, 139,374.74 and 40,324.82

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Solution

The fourth proportional to 92,916.50, 139,374.74 and 40,324.82 is: 60,487.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,916.50 : 139,374.74 = 40,324.82 : x
  2. Step 2: Convert to fraction form
    92,916.50/139,374.74 = 40,324.82/x
  3. Step 3: Cross multiply
    92,916.50x = 139,374.74 × 40,324.82
  4. Step 4: Simplify right side
    92,916.50x = 5,620,261,303.05
  5. Step 5: Solve for x
    x = 5,620,261,303.05/92,916.50
  6. Step 6: Final answer
    x = 60,487.23

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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.