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Finding the Fourth Proportional to 368,745.89, 553,177.15 and 132,083.33

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Solution

The fourth proportional to 368,745.89, 553,177.15 and 132,083.33 is: 198,145.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,745.89 : 553,177.15 = 132,083.33 : x
  2. Step 2: Convert to fraction form
    368,745.89/553,177.15 = 132,083.33/x
  3. Step 3: Cross multiply
    368,745.89x = 553,177.15 × 132,083.33
  4. Step 4: Simplify right side
    368,745.89x = 73,065,476,955.82
  5. Step 5: Solve for x
    x = 73,065,476,955.82/368,745.89
  6. Step 6: Final answer
    x = 198,145.88

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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.