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Finding the Fourth Proportional to 169,431.53, 254,065.21 and 51,080.81

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Solution

The fourth proportional to 169,431.53, 254,065.21 and 51,080.81 is: 76,596.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,431.53 : 254,065.21 = 51,080.81 : x
  2. Step 2: Convert to fraction form
    169,431.53/254,065.21 = 51,080.81/x
  3. Step 3: Cross multiply
    169,431.53x = 254,065.21 × 51,080.81
  4. Step 4: Simplify right side
    169,431.53x = 12,977,855,321.59
  5. Step 5: Solve for x
    x = 12,977,855,321.59/169,431.53
  6. Step 6: Final answer
    x = 76,596.46

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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.