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Finding the Fourth Proportional to 229,934,987.80, 344,902,481.70 and 148,305,650.20

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Solution

The fourth proportional to 229,934,987.80, 344,902,481.70 and 148,305,650.20 is: 222,458,475.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,934,987.80 : 344,902,481.70 = 148,305,650.20 : x
  2. Step 2: Convert to fraction form
    229,934,987.80/344,902,481.70 = 148,305,650.20/x
  3. Step 3: Cross multiply
    229,934,987.80x = 344,902,481.70 × 148,305,650.20
  4. Step 4: Simplify right side
    229,934,987.80x = 51,150,986,804,112,096
  5. Step 5: Solve for x
    x = 51,150,986,804,112,096/229,934,987.80
  6. Step 6: Final answer
    x = 222,458,475.30

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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.