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Finding the Fourth Proportional to 206,607.96, 285,106.96 and 115,955.44

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Solution

The fourth proportional to 206,607.96, 285,106.96 and 115,955.44 is: 160,011.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,607.96 : 285,106.96 = 115,955.44 : x
  2. Step 2: Convert to fraction form
    206,607.96/285,106.96 = 115,955.44/x
  3. Step 3: Cross multiply
    206,607.96x = 285,106.96 × 115,955.44
  4. Step 4: Simplify right side
    206,607.96x = 33,059,702,993.86
  5. Step 5: Solve for x
    x = 33,059,702,993.86/206,607.96
  6. Step 6: Final answer
    x = 160,011.76

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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.