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Finding the Fourth Proportional to 194,613.80, 291,690.30 and 82,293.80

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Solution

The fourth proportional to 194,613.80, 291,690.30 and 82,293.80 is: 123,343.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,613.80 : 291,690.30 = 82,293.80 : x
  2. Step 2: Convert to fraction form
    194,613.80/291,690.30 = 82,293.80/x
  3. Step 3: Cross multiply
    194,613.80x = 291,690.30 × 82,293.80
  4. Step 4: Simplify right side
    194,613.80x = 24,004,303,210.14
  5. Step 5: Solve for x
    x = 24,004,303,210.14/194,613.80
  6. Step 6: Final answer
    x = 123,343.27

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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.