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Finding the Fourth Proportional to 189,426.60, 283,794.30 and 154,175.40

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Solution

The fourth proportional to 189,426.60, 283,794.30 and 154,175.40 is: 230,981.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,426.60 : 283,794.30 = 154,175.40 : x
  2. Step 2: Convert to fraction form
    189,426.60/283,794.30 = 154,175.40/x
  3. Step 3: Cross multiply
    189,426.60x = 283,794.30 × 154,175.40
  4. Step 4: Simplify right side
    189,426.60x = 43,754,099,720.22
  5. Step 5: Solve for x
    x = 43,754,099,720.22/189,426.60
  6. Step 6: Final answer
    x = 230,981.81

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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.