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Finding the Fourth Proportional to 169,249.31, 253,873.49 and 42,889.19

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Solution

The fourth proportional to 169,249.31, 253,873.49 and 42,889.19 is: 64,333.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,249.31 : 253,873.49 = 42,889.19 : x
  2. Step 2: Convert to fraction form
    169,249.31/253,873.49 = 42,889.19/x
  3. Step 3: Cross multiply
    169,249.31x = 253,873.49 × 42,889.19
  4. Step 4: Simplify right side
    169,249.31x = 10,888,427,186.43
  5. Step 5: Solve for x
    x = 10,888,427,186.43/169,249.31
  6. Step 6: Final answer
    x = 64,333.66

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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.