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Finding the Fourth Proportional to 570,135.62, 855,194.47 and 196,161.86

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Solution

The fourth proportional to 570,135.62, 855,194.47 and 196,161.86 is: 294,239.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,135.62 : 855,194.47 = 196,161.86 : x
  2. Step 2: Convert to fraction form
    570,135.62/855,194.47 = 196,161.86/x
  3. Step 3: Cross multiply
    570,135.62x = 855,194.47 × 196,161.86
  4. Step 4: Simplify right side
    570,135.62x = 167,756,537,896.91
  5. Step 5: Solve for x
    x = 167,756,537,896.91/570,135.62
  6. Step 6: Final answer
    x = 294,239.71

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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.