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Finding the Fourth Proportional to 206,490.94, 309,552.90 and 73,353.64

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Solution

The fourth proportional to 206,490.94, 309,552.90 and 73,353.64 is: 109,965.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,490.94 : 309,552.90 = 73,353.64 : x
  2. Step 2: Convert to fraction form
    206,490.94/309,552.90 = 73,353.64/x
  3. Step 3: Cross multiply
    206,490.94x = 309,552.90 × 73,353.64
  4. Step 4: Simplify right side
    206,490.94x = 22,706,831,987.56
  5. Step 5: Solve for x
    x = 22,706,831,987.56/206,490.94
  6. Step 6: Final answer
    x = 109,965.27

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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.