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Finding the Fourth Proportional to 176,720.86, 265,105.91 and 56,781.42

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Solution

The fourth proportional to 176,720.86, 265,105.91 and 56,781.42 is: 85,180.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,720.86 : 265,105.91 = 56,781.42 : x
  2. Step 2: Convert to fraction form
    176,720.86/265,105.91 = 56,781.42/x
  3. Step 3: Cross multiply
    176,720.86x = 265,105.91 × 56,781.42
  4. Step 4: Simplify right side
    176,720.86x = 15,053,089,736.29
  5. Step 5: Solve for x
    x = 15,053,089,736.29/176,720.86
  6. Step 6: Final answer
    x = 85,180.04

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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.