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Finding the Fourth Proportional to 321,026.48, 481,276.88 and 121,233.44

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Solution

The fourth proportional to 321,026.48, 481,276.88 and 121,233.44 is: 181,750.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,026.48 : 481,276.88 = 121,233.44 : x
  2. Step 2: Convert to fraction form
    321,026.48/481,276.88 = 121,233.44/x
  3. Step 3: Cross multiply
    321,026.48x = 481,276.88 × 121,233.44
  4. Step 4: Simplify right side
    321,026.48x = 58,346,851,754.87
  5. Step 5: Solve for x
    x = 58,346,851,754.87/321,026.48
  6. Step 6: Final answer
    x = 181,750.90

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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.