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Finding the Fourth Proportional to 70,940.62, 97,894.14 and 40,723.97

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Solution

The fourth proportional to 70,940.62, 97,894.14 and 40,723.97 is: 56,196.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,940.62 : 97,894.14 = 40,723.97 : x
  2. Step 2: Convert to fraction form
    70,940.62/97,894.14 = 40,723.97/x
  3. Step 3: Cross multiply
    70,940.62x = 97,894.14 × 40,723.97
  4. Step 4: Simplify right side
    70,940.62x = 3,986,637,721.96
  5. Step 5: Solve for x
    x = 3,986,637,721.96/70,940.62
  6. Step 6: Final answer
    x = 56,196.82

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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.