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Finding the Fourth Proportional to 146,739.20, 220,108.80 and 127,056.20

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Solution

The fourth proportional to 146,739.20, 220,108.80 and 127,056.20 is: 190,584.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,739.20 : 220,108.80 = 127,056.20 : x
  2. Step 2: Convert to fraction form
    146,739.20/220,108.80 = 127,056.20/x
  3. Step 3: Cross multiply
    146,739.20x = 220,108.80 × 127,056.20
  4. Step 4: Simplify right side
    146,739.20x = 27,966,187,714.56
  5. Step 5: Solve for x
    x = 27,966,187,714.56/146,739.20
  6. Step 6: Final answer
    x = 190,584.30

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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.