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Finding the Fourth Proportional to 323,484.78, 485,272.54 and 113,074.86

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Solution

The fourth proportional to 323,484.78, 485,272.54 and 113,074.86 is: 169,628.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,484.78 : 485,272.54 = 113,074.86 : x
  2. Step 2: Convert to fraction form
    323,484.78/485,272.54 = 113,074.86/x
  3. Step 3: Cross multiply
    323,484.78x = 485,272.54 × 113,074.86
  4. Step 4: Simplify right side
    323,484.78x = 54,872,124,522.34
  5. Step 5: Solve for x
    x = 54,872,124,522.34/323,484.78
  6. Step 6: Final answer
    x = 169,628.15

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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.