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Finding the Fourth Proportional to 96,645.90, 133,369.71 and 54,203.52

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Solution

The fourth proportional to 96,645.90, 133,369.71 and 54,203.52 is: 74,799.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,645.90 : 133,369.71 = 54,203.52 : x
  2. Step 2: Convert to fraction form
    96,645.90/133,369.71 = 54,203.52/x
  3. Step 3: Cross multiply
    96,645.90x = 133,369.71 × 54,203.52
  4. Step 4: Simplify right side
    96,645.90x = 7,229,107,743.38
  5. Step 5: Solve for x
    x = 7,229,107,743.38/96,645.90
  6. Step 6: Final answer
    x = 74,799.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.