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Finding the Fourth Proportional to 171,021.52, 256,565.88 and 52,672.72

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Solution

The fourth proportional to 171,021.52, 256,565.88 and 52,672.72 is: 79,019.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,021.52 : 256,565.88 = 52,672.72 : x
  2. Step 2: Convert to fraction form
    171,021.52/256,565.88 = 52,672.72/x
  3. Step 3: Cross multiply
    171,021.52x = 256,565.88 × 52,672.72
  4. Step 4: Simplify right side
    171,021.52x = 13,514,022,758.79
  5. Step 5: Solve for x
    x = 13,514,022,758.79/171,021.52
  6. Step 6: Final answer
    x = 79,019.43

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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.