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Finding the Fourth Proportional to 171,298.92, 256,972.99 and 52,979.48

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Solution

The fourth proportional to 171,298.92, 256,972.99 and 52,979.48 is: 79,476.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,298.92 : 256,972.99 = 52,979.48 : x
  2. Step 2: Convert to fraction form
    171,298.92/256,972.99 = 52,979.48/x
  3. Step 3: Cross multiply
    171,298.92x = 256,972.99 × 52,979.48
  4. Step 4: Simplify right side
    171,298.92x = 13,614,296,475.39
  5. Step 5: Solve for x
    x = 13,614,296,475.39/171,298.92
  6. Step 6: Final answer
    x = 79,476.84

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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.