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Finding the Fourth Proportional to 570,685.21, 855,825.87 and 165,793.17

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Solution

The fourth proportional to 570,685.21, 855,825.87 and 165,793.17 is: 248,631.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,685.21 : 855,825.87 = 165,793.17 : x
  2. Step 2: Convert to fraction form
    570,685.21/855,825.87 = 165,793.17/x
  3. Step 3: Cross multiply
    570,685.21x = 855,825.87 × 165,793.17
  4. Step 4: Simplify right side
    570,685.21x = 141,890,087,786.38
  5. Step 5: Solve for x
    x = 141,890,087,786.38/570,685.21
  6. Step 6: Final answer
    x = 248,631.09

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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.