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Finding the Fourth Proportional to 171,309.72, 256,964.56 and 52,982.08

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Solution

The fourth proportional to 171,309.72, 256,964.56 and 52,982.08 is: 79,473.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,309.72 : 256,964.56 = 52,982.08 : x
  2. Step 2: Convert to fraction form
    171,309.72/256,964.56 = 52,982.08/x
  3. Step 3: Cross multiply
    171,309.72x = 256,964.56 × 52,982.08
  4. Step 4: Simplify right side
    171,309.72x = 13,614,516,875.08
  5. Step 5: Solve for x
    x = 13,614,516,875.08/171,309.72
  6. Step 6: Final answer
    x = 79,473.11

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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.