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Finding the Fourth Proportional to 168,981.60, 253,472.40 and 158,613.60

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Solution

The fourth proportional to 168,981.60, 253,472.40 and 158,613.60 is: 237,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,981.60 : 253,472.40 = 158,613.60 : x
  2. Step 2: Convert to fraction form
    168,981.60/253,472.40 = 158,613.60/x
  3. Step 3: Cross multiply
    168,981.60x = 253,472.40 × 158,613.60
  4. Step 4: Simplify right side
    168,981.60x = 40,204,169,864.64
  5. Step 5: Solve for x
    x = 40,204,169,864.64/168,981.60
  6. Step 6: Final answer
    x = 237,920.40

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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.