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Finding the Fourth Proportional to 297,889.16, 446,693.35 and 108,215.78

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Solution

The fourth proportional to 297,889.16, 446,693.35 and 108,215.78 is: 162,272.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,889.16 : 446,693.35 = 108,215.78 : x
  2. Step 2: Convert to fraction form
    297,889.16/446,693.35 = 108,215.78/x
  3. Step 3: Cross multiply
    297,889.16x = 446,693.35 × 108,215.78
  4. Step 4: Simplify right side
    297,889.16x = 48,339,266,787.06
  5. Step 5: Solve for x
    x = 48,339,266,787.06/297,889.16
  6. Step 6: Final answer
    x = 162,272.66

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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.