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Finding the Fourth Proportional to 247,892.81, 342,092.36 and 134,715.56

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Solution

The fourth proportional to 247,892.81, 342,092.36 and 134,715.56 is: 185,907.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,892.81 : 342,092.36 = 134,715.56 : x
  2. Step 2: Convert to fraction form
    247,892.81/342,092.36 = 134,715.56/x
  3. Step 3: Cross multiply
    247,892.81x = 342,092.36 × 134,715.56
  4. Step 4: Simplify right side
    247,892.81x = 46,085,162,475.45
  5. Step 5: Solve for x
    x = 46,085,162,475.45/247,892.81
  6. Step 6: Final answer
    x = 185,907.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.