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Finding the Fourth Proportional to 194,410.60, 290,838.30 and 168,404.20

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Solution

The fourth proportional to 194,410.60, 290,838.30 and 168,404.20 is: 251,932.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,410.60 : 290,838.30 = 168,404.20 : x
  2. Step 2: Convert to fraction form
    194,410.60/290,838.30 = 168,404.20/x
  3. Step 3: Cross multiply
    194,410.60x = 290,838.30 × 168,404.20
  4. Step 4: Simplify right side
    194,410.60x = 48,978,391,240.86
  5. Step 5: Solve for x
    x = 48,978,391,240.86/194,410.60
  6. Step 6: Final answer
    x = 251,932.72

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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.