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Finding the Fourth Proportional to 96,658.64, 133,379.96 and 54,208.96

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Solution

The fourth proportional to 96,658.64, 133,379.96 and 54,208.96 is: 74,803.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,658.64 : 133,379.96 = 54,208.96 : x
  2. Step 2: Convert to fraction form
    96,658.64/133,379.96 = 54,208.96/x
  3. Step 3: Cross multiply
    96,658.64x = 133,379.96 × 54,208.96
  4. Step 4: Simplify right side
    96,658.64x = 7,230,388,916.44
  5. Step 5: Solve for x
    x = 7,230,388,916.44/96,658.64
  6. Step 6: Final answer
    x = 74,803.34

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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.