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Finding the Fourth Proportional to 501,271.20, 751,906.80 and 146,321.10

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Solution

The fourth proportional to 501,271.20, 751,906.80 and 146,321.10 is: 219,481.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,271.20 : 751,906.80 = 146,321.10 : x
  2. Step 2: Convert to fraction form
    501,271.20/751,906.80 = 146,321.10/x
  3. Step 3: Cross multiply
    501,271.20x = 751,906.80 × 146,321.10
  4. Step 4: Simplify right side
    501,271.20x = 110,019,830,073.48
  5. Step 5: Solve for x
    x = 110,019,830,073.48/501,271.20
  6. Step 6: Final answer
    x = 219,481.65

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Similar ratio
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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.