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Finding the Fourth Proportional to 228,488.18, 342,791.39 and 133,798.37

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Solution

The fourth proportional to 228,488.18, 342,791.39 and 133,798.37 is: 200,732.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,488.18 : 342,791.39 = 133,798.37 : x
  2. Step 2: Convert to fraction form
    228,488.18/342,791.39 = 133,798.37/x
  3. Step 3: Cross multiply
    228,488.18x = 342,791.39 × 133,798.37
  4. Step 4: Simplify right side
    228,488.18x = 45,864,927,852.57
  5. Step 5: Solve for x
    x = 45,864,927,852.57/228,488.18
  6. Step 6: Final answer
    x = 200,732.17

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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.