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Finding the Fourth Proportional to 54,658.60, 74,936.87 and 53,662.15

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Solution

The fourth proportional to 54,658.60, 74,936.87 and 53,662.15 is: 73,570.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,658.60 : 74,936.87 = 53,662.15 : x
  2. Step 2: Convert to fraction form
    54,658.60/74,936.87 = 53,662.15/x
  3. Step 3: Cross multiply
    54,658.60x = 74,936.87 × 53,662.15
  4. Step 4: Simplify right side
    54,658.60x = 4,021,273,314.47
  5. Step 5: Solve for x
    x = 4,021,273,314.47/54,658.60
  6. Step 6: Final answer
    x = 73,570.74

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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.