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Finding the Fourth Proportional to 171,031.92, 256,572 and 52,712.88

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Solution

The fourth proportional to 171,031.92, 256,572 and 52,712.88 is: 79,076.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,031.92 : 256,572 = 52,712.88 : x
  2. Step 2: Convert to fraction form
    171,031.92/256,572 = 52,712.88/x
  3. Step 3: Cross multiply
    171,031.92x = 256,572 × 52,712.88
  4. Step 4: Simplify right side
    171,031.92x = 13,524,649,047.36
  5. Step 5: Solve for x
    x = 13,524,649,047.36/171,031.92
  6. Step 6: Final answer
    x = 79,076.75

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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.