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Finding the Fourth Proportional to 323,613.04, 485,341.68 and 98,975.43

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Solution

The fourth proportional to 323,613.04, 485,341.68 and 98,975.43 is: 148,439.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,613.04 : 485,341.68 = 98,975.43 : x
  2. Step 2: Convert to fraction form
    323,613.04/485,341.68 = 98,975.43/x
  3. Step 3: Cross multiply
    323,613.04x = 485,341.68 × 98,975.43
  4. Step 4: Simplify right side
    323,613.04x = 48,036,901,474.92
  5. Step 5: Solve for x
    x = 48,036,901,474.92/323,613.04
  6. Step 6: Final answer
    x = 148,439.33

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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.