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Finding the Fourth Proportional to 74,336, 111,542.24 and 49,393.28

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Solution

The fourth proportional to 74,336, 111,542.24 and 49,393.28 is: 74,115.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,336 : 111,542.24 = 49,393.28 : x
  2. Step 2: Convert to fraction form
    74,336/111,542.24 = 49,393.28/x
  3. Step 3: Cross multiply
    74,336x = 111,542.24 × 49,393.28
  4. Step 4: Simplify right side
    74,336x = 5,509,437,092.15
  5. Step 5: Solve for x
    x = 5,509,437,092.15/74,336
  6. Step 6: Final answer
    x = 74,115.33

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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.