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Finding the Fourth Proportional to 68,969.64, 103,370.92 and 48,947.64

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Solution

The fourth proportional to 68,969.64, 103,370.92 and 48,947.64 is: 73,362.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,969.64 : 103,370.92 = 48,947.64 : x
  2. Step 2: Convert to fraction form
    68,969.64/103,370.92 = 48,947.64/x
  3. Step 3: Cross multiply
    68,969.64x = 103,370.92 × 48,947.64
  4. Step 4: Simplify right side
    68,969.64x = 5,059,762,578.63
  5. Step 5: Solve for x
    x = 5,059,762,578.63/68,969.64
  6. Step 6: Final answer
    x = 73,362.17

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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.