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Finding the Fourth Proportional to 228,488.36, 342,791.68 and 133,798.55

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Solution

The fourth proportional to 228,488.36, 342,791.68 and 133,798.55 is: 200,732.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,488.36 : 342,791.68 = 133,798.55 : x
  2. Step 2: Convert to fraction form
    228,488.36/342,791.68 = 133,798.55/x
  3. Step 3: Cross multiply
    228,488.36x = 342,791.68 × 133,798.55
  4. Step 4: Simplify right side
    228,488.36x = 45,865,030,258.55
  5. Step 5: Solve for x
    x = 45,865,030,258.55/228,488.36
  6. Step 6: Final answer
    x = 200,732.46

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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.