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Finding the Fourth Proportional to 500,665.10, 751,043.82 and 163,707.48

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Solution

The fourth proportional to 500,665.10, 751,043.82 and 163,707.48 is: 245,576.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,665.10 : 751,043.82 = 163,707.48 : x
  2. Step 2: Convert to fraction form
    500,665.10/751,043.82 = 163,707.48/x
  3. Step 3: Cross multiply
    500,665.10x = 751,043.82 × 163,707.48
  4. Step 4: Simplify right side
    500,665.10x = 122,951,491,141.77
  5. Step 5: Solve for x
    x = 122,951,491,141.77/500,665.10
  6. Step 6: Final answer
    x = 245,576.32

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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.