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Finding the Fourth Proportional to 169,544.31, 254,318.90 and 51,216.68

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Solution

The fourth proportional to 169,544.31, 254,318.90 and 51,216.68 is: 76,825.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,544.31 : 254,318.90 = 51,216.68 : x
  2. Step 2: Convert to fraction form
    169,544.31/254,318.90 = 51,216.68/x
  3. Step 3: Cross multiply
    169,544.31x = 254,318.90 × 51,216.68
  4. Step 4: Simplify right side
    169,544.31x = 13,025,368,191.57
  5. Step 5: Solve for x
    x = 13,025,368,191.57/169,544.31
  6. Step 6: Final answer
    x = 76,825.75

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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.