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Finding the Fourth Proportional to 348,086.80, 522,057.30 and 170,721.10

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Solution

The fourth proportional to 348,086.80, 522,057.30 and 170,721.10 is: 256,045.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,086.80 : 522,057.30 = 170,721.10 : x
  2. Step 2: Convert to fraction form
    348,086.80/522,057.30 = 170,721.10/x
  3. Step 3: Cross multiply
    348,086.80x = 522,057.30 × 170,721.10
  4. Step 4: Simplify right side
    348,086.80x = 89,126,196,519.03
  5. Step 5: Solve for x
    x = 89,126,196,519.03/348,086.80
  6. Step 6: Final answer
    x = 256,045.90

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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.