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Finding the Fourth Proportional to 323,674.38, 485,494.05 and 99,034.86

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Solution

The fourth proportional to 323,674.38, 485,494.05 and 99,034.86 is: 148,546.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,674.38 : 485,494.05 = 99,034.86 : x
  2. Step 2: Convert to fraction form
    323,674.38/485,494.05 = 99,034.86/x
  3. Step 3: Cross multiply
    323,674.38x = 485,494.05 × 99,034.86
  4. Step 4: Simplify right side
    323,674.38x = 48,080,835,272.58
  5. Step 5: Solve for x
    x = 48,080,835,272.58/323,674.38
  6. Step 6: Final answer
    x = 148,546.93

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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.