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Finding the Fourth Proportional to 323,079.72, 484,718.76 and 165,418.86

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Solution

The fourth proportional to 323,079.72, 484,718.76 and 165,418.86 is: 248,179.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,079.72 : 484,718.76 = 165,418.86 : x
  2. Step 2: Convert to fraction form
    323,079.72/484,718.76 = 165,418.86/x
  3. Step 3: Cross multiply
    323,079.72x = 484,718.76 × 165,418.86
  4. Step 4: Simplify right side
    323,079.72x = 80,181,624,699.81
  5. Step 5: Solve for x
    x = 80,181,624,699.81/323,079.72
  6. Step 6: Final answer
    x = 248,179.07

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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.