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Finding the Fourth Proportional to 73,639.72, 110,473.35 and 40,341.43

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Solution

The fourth proportional to 73,639.72, 110,473.35 and 40,341.43 is: 60,519.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,639.72 : 110,473.35 = 40,341.43 : x
  2. Step 2: Convert to fraction form
    73,639.72/110,473.35 = 40,341.43/x
  3. Step 3: Cross multiply
    73,639.72x = 110,473.35 × 40,341.43
  4. Step 4: Simplify right side
    73,639.72x = 4,456,652,915.89
  5. Step 5: Solve for x
    x = 4,456,652,915.89/73,639.72
  6. Step 6: Final answer
    x = 60,519.69

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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.