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Finding the Fourth Proportional to 170,782.86, 256,207.11 and 58,480.41

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Solution

The fourth proportional to 170,782.86, 256,207.11 and 58,480.41 is: 87,731.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,782.86 : 256,207.11 = 58,480.41 : x
  2. Step 2: Convert to fraction form
    170,782.86/256,207.11 = 58,480.41/x
  3. Step 3: Cross multiply
    170,782.86x = 256,207.11 × 58,480.41
  4. Step 4: Simplify right side
    170,782.86x = 14,983,096,837.72
  5. Step 5: Solve for x
    x = 14,983,096,837.72/170,782.86
  6. Step 6: Final answer
    x = 87,731.85

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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.