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Finding the Fourth Proportional to 202,197.69, 303,332.21 and 69,046.74

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Solution

The fourth proportional to 202,197.69, 303,332.21 and 69,046.74 is: 103,582.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,197.69 : 303,332.21 = 69,046.74 : x
  2. Step 2: Convert to fraction form
    202,197.69/303,332.21 = 69,046.74/x
  3. Step 3: Cross multiply
    202,197.69x = 303,332.21 × 69,046.74
  4. Step 4: Simplify right side
    202,197.69x = 20,944,099,892.26
  5. Step 5: Solve for x
    x = 20,944,099,892.26/202,197.69
  6. Step 6: Final answer
    x = 103,582.29

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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.