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Finding the Fourth Proportional to 70,791.94, 97,691.16 and 40,594.87

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Solution

The fourth proportional to 70,791.94, 97,691.16 and 40,594.87 is: 56,019.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,791.94 : 97,691.16 = 40,594.87 : x
  2. Step 2: Convert to fraction form
    70,791.94/97,691.16 = 40,594.87/x
  3. Step 3: Cross multiply
    70,791.94x = 97,691.16 × 40,594.87
  4. Step 4: Simplify right side
    70,791.94x = 3,965,759,940.35
  5. Step 5: Solve for x
    x = 3,965,759,940.35/70,791.94
  6. Step 6: Final answer
    x = 56,019.94

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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.