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Finding the Fourth Proportional to 89,603.04, 134,310.80 and 33,420.57

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Solution

The fourth proportional to 89,603.04, 134,310.80 and 33,420.57 is: 50,095.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,603.04 : 134,310.80 = 33,420.57 : x
  2. Step 2: Convert to fraction form
    89,603.04/134,310.80 = 33,420.57/x
  3. Step 3: Cross multiply
    89,603.04x = 134,310.80 × 33,420.57
  4. Step 4: Simplify right side
    89,603.04x = 4,488,743,326.05
  5. Step 5: Solve for x
    x = 4,488,743,326.05/89,603.04
  6. Step 6: Final answer
    x = 50,095.88

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.