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Finding the Fourth Proportional to 215,266.16, 297,040.56 and 119,766.08

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Solution

The fourth proportional to 215,266.16, 297,040.56 and 119,766.08 is: 165,262.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,266.16 : 297,040.56 = 119,766.08 : x
  2. Step 2: Convert to fraction form
    215,266.16/297,040.56 = 119,766.08/x
  3. Step 3: Cross multiply
    215,266.16x = 297,040.56 × 119,766.08
  4. Step 4: Simplify right side
    215,266.16x = 35,575,383,472.20
  5. Step 5: Solve for x
    x = 35,575,383,472.20/215,266.16
  6. Step 6: Final answer
    x = 165,262.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.