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Finding the Fourth Proportional to 69,495.80, 104,243.66 and 48,811.64

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Solution

The fourth proportional to 69,495.80, 104,243.66 and 48,811.64 is: 73,217.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,495.80 : 104,243.66 = 48,811.64 : x
  2. Step 2: Convert to fraction form
    69,495.80/104,243.66 = 48,811.64/x
  3. Step 3: Cross multiply
    69,495.80x = 104,243.66 × 48,811.64
  4. Step 4: Simplify right side
    69,495.80x = 5,088,304,004.20
  5. Step 5: Solve for x
    x = 5,088,304,004.20/69,495.80
  6. Step 6: Final answer
    x = 73,217.43

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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.