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Finding the Fourth Proportional to 155,818.62, 214,981.88 and 95,326.20

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Solution

The fourth proportional to 155,818.62, 214,981.88 and 95,326.20 is: 131,520.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,818.62 : 214,981.88 = 95,326.20 : x
  2. Step 2: Convert to fraction form
    155,818.62/214,981.88 = 95,326.20/x
  3. Step 3: Cross multiply
    155,818.62x = 214,981.88 × 95,326.20
  4. Step 4: Simplify right side
    155,818.62x = 20,493,405,212.63
  5. Step 5: Solve for x
    x = 20,493,405,212.63/155,818.62
  6. Step 6: Final answer
    x = 131,520.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.