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Finding the Fourth Proportional to 171,314.76, 256,996.80 and 52,995.28

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Solution

The fourth proportional to 171,314.76, 256,996.80 and 52,995.28 is: 79,500.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,314.76 : 256,996.80 = 52,995.28 : x
  2. Step 2: Convert to fraction form
    171,314.76/256,996.80 = 52,995.28/x
  3. Step 3: Cross multiply
    171,314.76x = 256,996.80 × 52,995.28
  4. Step 4: Simplify right side
    171,314.76x = 13,619,617,375.10
  5. Step 5: Solve for x
    x = 13,619,617,375.10/171,314.76
  6. Step 6: Final answer
    x = 79,500.55

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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.