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Finding the Fourth Proportional to 206,452.95, 309,606.53 and 73,337.55

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Solution

The fourth proportional to 206,452.95, 309,606.53 and 73,337.55 is: 109,980.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,452.95 : 309,606.53 = 73,337.55 : x
  2. Step 2: Convert to fraction form
    206,452.95/309,606.53 = 73,337.55/x
  3. Step 3: Cross multiply
    206,452.95x = 309,606.53 × 73,337.55
  4. Step 4: Simplify right side
    206,452.95x = 22,705,784,007.51
  5. Step 5: Solve for x
    x = 22,705,784,007.51/206,452.95
  6. Step 6: Final answer
    x = 109,980.43

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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.