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Finding the Fourth Proportional to 73,838.21, 101,861.80 and 43,603.39

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Solution

The fourth proportional to 73,838.21, 101,861.80 and 43,603.39 is: 60,152.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,838.21 : 101,861.80 = 43,603.39 : x
  2. Step 2: Convert to fraction form
    73,838.21/101,861.80 = 43,603.39/x
  3. Step 3: Cross multiply
    73,838.21x = 101,861.80 × 43,603.39
  4. Step 4: Simplify right side
    73,838.21x = 4,441,519,768.60
  5. Step 5: Solve for x
    x = 4,441,519,768.60/73,838.21
  6. Step 6: Final answer
    x = 60,152.05

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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.