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Finding the Fourth Proportional to 153,927.20, 230,912.40 and 48,735.20

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Solution

The fourth proportional to 153,927.20, 230,912.40 and 48,735.20 is: 73,109.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,927.20 : 230,912.40 = 48,735.20 : x
  2. Step 2: Convert to fraction form
    153,927.20/230,912.40 = 48,735.20/x
  3. Step 3: Cross multiply
    153,927.20x = 230,912.40 × 48,735.20
  4. Step 4: Simplify right side
    153,927.20x = 11,253,561,996.48
  5. Step 5: Solve for x
    x = 11,253,561,996.48/153,927.20
  6. Step 6: Final answer
    x = 73,109.64

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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.