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Finding the Fourth Proportional to 246,991.01, 370,447.73 and 78,489.14

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Solution

The fourth proportional to 246,991.01, 370,447.73 and 78,489.14 is: 117,721.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,991.01 : 370,447.73 = 78,489.14 : x
  2. Step 2: Convert to fraction form
    246,991.01/370,447.73 = 78,489.14/x
  3. Step 3: Cross multiply
    246,991.01x = 370,447.73 × 78,489.14
  4. Step 4: Simplify right side
    246,991.01x = 29,076,123,350.21
  5. Step 5: Solve for x
    x = 29,076,123,350.21/246,991.01
  6. Step 6: Final answer
    x = 117,721.38

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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.