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Finding the Fourth Proportional to 344,009.80, 515,577.30 and 166,133.80

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Solution

The fourth proportional to 344,009.80, 515,577.30 and 166,133.80 is: 248,989.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,009.80 : 515,577.30 = 166,133.80 : x
  2. Step 2: Convert to fraction form
    344,009.80/515,577.30 = 166,133.80/x
  3. Step 3: Cross multiply
    344,009.80x = 515,577.30 × 166,133.80
  4. Step 4: Simplify right side
    344,009.80x = 85,654,816,042.74
  5. Step 5: Solve for x
    x = 85,654,816,042.74/344,009.80
  6. Step 6: Final answer
    x = 248,989.46

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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.