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Finding the Fourth Proportional to 69,496.80, 104,245.16 and 48,812.64

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Solution

The fourth proportional to 69,496.80, 104,245.16 and 48,812.64 is: 73,218.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,496.80 : 104,245.16 = 48,812.64 : x
  2. Step 2: Convert to fraction form
    69,496.80/104,245.16 = 48,812.64/x
  3. Step 3: Cross multiply
    69,496.80x = 104,245.16 × 48,812.64
  4. Step 4: Simplify right side
    69,496.80x = 5,088,481,466.82
  5. Step 5: Solve for x
    x = 5,088,481,466.82/69,496.80
  6. Step 6: Final answer
    x = 73,218.93

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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.