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Finding the Fourth Proportional to 93,990.61, 140,958.15 and 27,409.78

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Solution

The fourth proportional to 93,990.61, 140,958.15 and 27,409.78 is: 41,106.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,990.61 : 140,958.15 = 27,409.78 : x
  2. Step 2: Convert to fraction form
    93,990.61/140,958.15 = 27,409.78/x
  3. Step 3: Cross multiply
    93,990.61x = 140,958.15 × 27,409.78
  4. Step 4: Simplify right side
    93,990.61x = 3,863,631,880.71
  5. Step 5: Solve for x
    x = 3,863,631,880.71/93,990.61
  6. Step 6: Final answer
    x = 41,106.57

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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.