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Finding the Fourth Proportional to 207,181.89, 285,898.91 and 115,298.73

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Solution

The fourth proportional to 207,181.89, 285,898.91 and 115,298.73 is: 159,105.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,181.89 : 285,898.91 = 115,298.73 : x
  2. Step 2: Convert to fraction form
    207,181.89/285,898.91 = 115,298.73/x
  3. Step 3: Cross multiply
    207,181.89x = 285,898.91 × 115,298.73
  4. Step 4: Simplify right side
    207,181.89x = 32,963,780,654.89
  5. Step 5: Solve for x
    x = 32,963,780,654.89/207,181.89
  6. Step 6: Final answer
    x = 159,105.51

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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.