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Finding the Fourth Proportional to 206,379.16, 309,599.50 and 73,248.27

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Solution

The fourth proportional to 206,379.16, 309,599.50 and 73,248.27 is: 109,883.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,379.16 : 309,599.50 = 73,248.27 : x
  2. Step 2: Convert to fraction form
    206,379.16/309,599.50 = 73,248.27/x
  3. Step 3: Cross multiply
    206,379.16x = 309,599.50 × 73,248.27
  4. Step 4: Simplify right side
    206,379.16x = 22,677,627,767.87
  5. Step 5: Solve for x
    x = 22,677,627,767.87/206,379.16
  6. Step 6: Final answer
    x = 109,883.32

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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.