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Finding the Fourth Proportional to 114,359.80, 171,636.90 and 92,198.20

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Solution

The fourth proportional to 114,359.80, 171,636.90 and 92,198.20 is: 138,375.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,359.80 : 171,636.90 = 92,198.20 : x
  2. Step 2: Convert to fraction form
    114,359.80/171,636.90 = 92,198.20/x
  3. Step 3: Cross multiply
    114,359.80x = 171,636.90 × 92,198.20
  4. Step 4: Simplify right side
    114,359.80x = 15,824,613,233.58
  5. Step 5: Solve for x
    x = 15,824,613,233.58/114,359.80
  6. Step 6: Final answer
    x = 138,375.66

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1.5x scale

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.