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Finding the Fourth Proportional to 54,699.88, 74,993.56 and 53,703.48

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Solution

The fourth proportional to 54,699.88, 74,993.56 and 53,703.48 is: 73,627.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,699.88 : 74,993.56 = 53,703.48 : x
  2. Step 2: Convert to fraction form
    54,699.88/74,993.56 = 53,703.48/x
  3. Step 3: Cross multiply
    54,699.88x = 74,993.56 × 53,703.48
  4. Step 4: Simplify right side
    54,699.88x = 4,027,414,827.85
  5. Step 5: Solve for x
    x = 4,027,414,827.85/54,699.88
  6. Step 6: Final answer
    x = 73,627.49

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.