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Finding the Fourth Proportional to 169,388.88, 253,992.42 and 57,031.62

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Solution

The fourth proportional to 169,388.88, 253,992.42 and 57,031.62 is: 85,516.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,388.88 : 253,992.42 = 57,031.62 : x
  2. Step 2: Convert to fraction form
    169,388.88/253,992.42 = 57,031.62/x
  3. Step 3: Cross multiply
    169,388.88x = 253,992.42 × 57,031.62
  4. Step 4: Simplify right side
    169,388.88x = 14,485,599,180.32
  5. Step 5: Solve for x
    x = 14,485,599,180.32/169,388.88
  6. Step 6: Final answer
    x = 85,516.82

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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.