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Finding the Fourth Proportional to 191,146.62, 286,844.66 and 71,299.44

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Solution

The fourth proportional to 191,146.62, 286,844.66 and 71,299.44 is: 106,995.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,146.62 : 286,844.66 = 71,299.44 : x
  2. Step 2: Convert to fraction form
    191,146.62/286,844.66 = 71,299.44/x
  3. Step 3: Cross multiply
    191,146.62x = 286,844.66 × 71,299.44
  4. Step 4: Simplify right side
    191,146.62x = 20,451,864,520.35
  5. Step 5: Solve for x
    x = 20,451,864,520.35/191,146.62
  6. Step 6: Final answer
    x = 106,995.69

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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.