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Finding the Fourth Proportional to 194,640.60, 291,960.90 and 186,864.60

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Solution

The fourth proportional to 194,640.60, 291,960.90 and 186,864.60 is: 280,296.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,640.60 : 291,960.90 = 186,864.60 : x
  2. Step 2: Convert to fraction form
    194,640.60/291,960.90 = 186,864.60/x
  3. Step 3: Cross multiply
    194,640.60x = 291,960.90 × 186,864.60
  4. Step 4: Simplify right side
    194,640.60x = 54,557,156,794.14
  5. Step 5: Solve for x
    x = 54,557,156,794.14/194,640.60
  6. Step 6: Final answer
    x = 280,296.90

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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.