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Finding the Fourth Proportional to 351,377.02, 526,728.81 and 148,694.31

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Solution

The fourth proportional to 351,377.02, 526,728.81 and 148,694.31 is: 222,898.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,377.02 : 526,728.81 = 148,694.31 : x
  2. Step 2: Convert to fraction form
    351,377.02/526,728.81 = 148,694.31/x
  3. Step 3: Cross multiply
    351,377.02x = 526,728.81 × 148,694.31
  4. Step 4: Simplify right side
    351,377.02x = 78,321,576,960.07
  5. Step 5: Solve for x
    x = 78,321,576,960.07/351,377.02
  6. Step 6: Final answer
    x = 222,898.97

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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.