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Finding the Fourth Proportional to 70,620.62, 97,473.42 and 40,423.44

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Solution

The fourth proportional to 70,620.62, 97,473.42 and 40,423.44 is: 55,794.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,620.62 : 97,473.42 = 40,423.44 : x
  2. Step 2: Convert to fraction form
    70,620.62/97,473.42 = 40,423.44/x
  3. Step 3: Cross multiply
    70,620.62x = 97,473.42 × 40,423.44
  4. Step 4: Simplify right side
    70,620.62x = 3,940,210,944.96
  5. Step 5: Solve for x
    x = 3,940,210,944.96/70,620.62
  6. Step 6: Final answer
    x = 55,794.06

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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.