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Finding the Fourth Proportional to 217,270.58, 299,832.45 and 121,777.27

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Solution

The fourth proportional to 217,270.58, 299,832.45 and 121,777.27 is: 168,052.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,270.58 : 299,832.45 = 121,777.27 : x
  2. Step 2: Convert to fraction form
    217,270.58/299,832.45 = 121,777.27/x
  3. Step 3: Cross multiply
    217,270.58x = 299,832.45 × 121,777.27
  4. Step 4: Simplify right side
    217,270.58x = 36,512,777,522.85
  5. Step 5: Solve for x
    x = 36,512,777,522.85/217,270.58
  6. Step 6: Final answer
    x = 168,052.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.