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Finding the Fourth Proportional to 331,663.20, 497,494.80 and 110,047.20

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Solution

The fourth proportional to 331,663.20, 497,494.80 and 110,047.20 is: 165,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,663.20 : 497,494.80 = 110,047.20 : x
  2. Step 2: Convert to fraction form
    331,663.20/497,494.80 = 110,047.20/x
  3. Step 3: Cross multiply
    331,663.20x = 497,494.80 × 110,047.20
  4. Step 4: Simplify right side
    331,663.20x = 54,747,909,754.56
  5. Step 5: Solve for x
    x = 54,747,909,754.56/331,663.20
  6. Step 6: Final answer
    x = 165,070.80

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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.