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Finding the Fourth Proportional to 486,060.44, 729,112.56 and 149,076.60

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Solution

The fourth proportional to 486,060.44, 729,112.56 and 149,076.60 is: 223,621.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,060.44 : 729,112.56 = 149,076.60 : x
  2. Step 2: Convert to fraction form
    486,060.44/729,112.56 = 149,076.60/x
  3. Step 3: Cross multiply
    486,060.44x = 729,112.56 × 149,076.60
  4. Step 4: Simplify right side
    486,060.44x = 108,693,621,462.10
  5. Step 5: Solve for x
    x = 108,693,621,462.10/486,060.44
  6. Step 6: Final answer
    x = 223,621.62

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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.