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Finding the Fourth Proportional to 89,841.59, 134,419.73 and 54,171.62

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Solution

The fourth proportional to 89,841.59, 134,419.73 and 54,171.62 is: 81,050.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,841.59 : 134,419.73 = 54,171.62 : x
  2. Step 2: Convert to fraction form
    89,841.59/134,419.73 = 54,171.62/x
  3. Step 3: Cross multiply
    89,841.59x = 134,419.73 × 54,171.62
  4. Step 4: Simplify right side
    89,841.59x = 7,281,733,591.11
  5. Step 5: Solve for x
    x = 7,281,733,591.11/89,841.59
  6. Step 6: Final answer
    x = 81,050.81

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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.