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Finding the Fourth Proportional to 368,119.97, 552,164.13 and 115,394.79

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Solution

The fourth proportional to 368,119.97, 552,164.13 and 115,394.79 is: 173,087.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,119.97 : 552,164.13 = 115,394.79 : x
  2. Step 2: Convert to fraction form
    368,119.97/552,164.13 = 115,394.79/x
  3. Step 3: Cross multiply
    368,119.97x = 552,164.13 × 115,394.79
  4. Step 4: Simplify right side
    368,119.97x = 63,716,863,826.88
  5. Step 5: Solve for x
    x = 63,716,863,826.88/368,119.97
  6. Step 6: Final answer
    x = 173,087.23

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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.