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Finding the Fourth Proportional to 323,956.16, 486,081.93 and 166,295.42

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Solution

The fourth proportional to 323,956.16, 486,081.93 and 166,295.42 is: 249,518.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,956.16 : 486,081.93 = 166,295.42 : x
  2. Step 2: Convert to fraction form
    323,956.16/486,081.93 = 166,295.42/x
  3. Step 3: Cross multiply
    323,956.16x = 486,081.93 × 166,295.42
  4. Step 4: Simplify right side
    323,956.16x = 80,833,198,703.76
  5. Step 5: Solve for x
    x = 80,833,198,703.76/323,956.16
  6. Step 6: Final answer
    x = 249,518.94

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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.