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Finding the Fourth Proportional to 72,268.88, 108,357.75 and 34,838.37

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Solution

The fourth proportional to 72,268.88, 108,357.75 and 34,838.37 is: 52,235.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,268.88 : 108,357.75 = 34,838.37 : x
  2. Step 2: Convert to fraction form
    72,268.88/108,357.75 = 34,838.37/x
  3. Step 3: Cross multiply
    72,268.88x = 108,357.75 × 34,838.37
  4. Step 4: Simplify right side
    72,268.88x = 3,775,007,386.87
  5. Step 5: Solve for x
    x = 3,775,007,386.87/72,268.88
  6. Step 6: Final answer
    x = 52,235.59

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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.