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Finding the Fourth Proportional to 155,568.60, 214,617.60 and 119,701.80

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Solution

The fourth proportional to 155,568.60, 214,617.60 and 119,701.80 is: 165,136.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,568.60 : 214,617.60 = 119,701.80 : x
  2. Step 2: Convert to fraction form
    155,568.60/214,617.60 = 119,701.80/x
  3. Step 3: Cross multiply
    155,568.60x = 214,617.60 × 119,701.80
  4. Step 4: Simplify right side
    155,568.60x = 25,690,113,031.68
  5. Step 5: Solve for x
    x = 25,690,113,031.68/155,568.60
  6. Step 6: Final answer
    x = 165,136.88

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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.