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Finding the Fourth Proportional to 74,662.88, 112,064.66 and 49,720.37

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Solution

The fourth proportional to 74,662.88, 112,064.66 and 49,720.37 is: 74,627.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,662.88 : 112,064.66 = 49,720.37 : x
  2. Step 2: Convert to fraction form
    74,662.88/112,064.66 = 49,720.37/x
  3. Step 3: Cross multiply
    74,662.88x = 112,064.66 × 49,720.37
  4. Step 4: Simplify right side
    74,662.88x = 5,571,895,550.20
  5. Step 5: Solve for x
    x = 5,571,895,550.20/74,662.88
  6. Step 6: Final answer
    x = 74,627.39

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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.