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Finding the Fourth Proportional to 236,040, 325,738.44 and 135,438

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Solution

The fourth proportional to 236,040, 325,738.44 and 135,438 is: 186,906.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,040 : 325,738.44 = 135,438 : x
  2. Step 2: Convert to fraction form
    236,040/325,738.44 = 135,438/x
  3. Step 3: Cross multiply
    236,040x = 325,738.44 × 135,438
  4. Step 4: Simplify right side
    236,040x = 44,117,362,836.72
  5. Step 5: Solve for x
    x = 44,117,362,836.72/236,040
  6. Step 6: Final answer
    x = 186,906.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.