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Finding the Fourth Proportional to 93,260.31, 139,861.31 and 40,616.79

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Solution

The fourth proportional to 93,260.31, 139,861.31 and 40,616.79 is: 60,912.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,260.31 : 139,861.31 = 40,616.79 : x
  2. Step 2: Convert to fraction form
    93,260.31/139,861.31 = 40,616.79/x
  3. Step 3: Cross multiply
    93,260.31x = 139,861.31 × 40,616.79
  4. Step 4: Simplify right side
    93,260.31x = 5,680,717,254.31
  5. Step 5: Solve for x
    x = 5,680,717,254.31/93,260.31
  6. Step 6: Final answer
    x = 60,912.49

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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.