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Finding the Fourth Proportional to 527,956.56, 792,046.80 and 172,944

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Solution

The fourth proportional to 527,956.56, 792,046.80 and 172,944 is: 259,452.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,956.56 : 792,046.80 = 172,944 : x
  2. Step 2: Convert to fraction form
    527,956.56/792,046.80 = 172,944/x
  3. Step 3: Cross multiply
    527,956.56x = 792,046.80 × 172,944
  4. Step 4: Simplify right side
    527,956.56x = 136,979,741,779.20
  5. Step 5: Solve for x
    x = 136,979,741,779.20/527,956.56
  6. Step 6: Final answer
    x = 259,452.68

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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.