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Finding the Fourth Proportional to 194,605.20, 291,920.12 and 82,270.63

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Solution

The fourth proportional to 194,605.20, 291,920.12 and 82,270.63 is: 123,411.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,605.20 : 291,920.12 = 82,270.63 : x
  2. Step 2: Convert to fraction form
    194,605.20/291,920.12 = 82,270.63/x
  3. Step 3: Cross multiply
    194,605.20x = 291,920.12 × 82,270.63
  4. Step 4: Simplify right side
    194,605.20x = 24,016,452,182.08
  5. Step 5: Solve for x
    x = 24,016,452,182.08/194,605.20
  6. Step 6: Final answer
    x = 123,411.15

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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.