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Finding the Fourth Proportional to 215,644.65, 297,589.58 and 118,848.48

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Solution

The fourth proportional to 215,644.65, 297,589.58 and 118,848.48 is: 164,010.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,644.65 : 297,589.58 = 118,848.48 : x
  2. Step 2: Convert to fraction form
    215,644.65/297,589.58 = 118,848.48/x
  3. Step 3: Cross multiply
    215,644.65x = 297,589.58 × 118,848.48
  4. Step 4: Simplify right side
    215,644.65x = 35,368,067,982.32
  5. Step 5: Solve for x
    x = 35,368,067,982.32/215,644.65
  6. Step 6: Final answer
    x = 164,010.88

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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.