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Finding the Fourth Proportional to 171,057.21, 256,628 and 58,739.10

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Solution

The fourth proportional to 171,057.21, 256,628 and 58,739.10 is: 88,123.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,057.21 : 256,628 = 58,739.10 : x
  2. Step 2: Convert to fraction form
    171,057.21/256,628 = 58,739.10/x
  3. Step 3: Cross multiply
    171,057.21x = 256,628 × 58,739.10
  4. Step 4: Simplify right side
    171,057.21x = 15,074,097,754.80
  5. Step 5: Solve for x
    x = 15,074,097,754.80/171,057.21
  6. Step 6: Final answer
    x = 88,123.14

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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.