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Finding the Fourth Proportional to 70,849.69, 97,771.97 and 39,017.91

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Solution

The fourth proportional to 70,849.69, 97,771.97 and 39,017.91 is: 53,844.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,849.69 : 97,771.97 = 39,017.91 : x
  2. Step 2: Convert to fraction form
    70,849.69/97,771.97 = 39,017.91/x
  3. Step 3: Cross multiply
    70,849.69x = 97,771.97 × 39,017.91
  4. Step 4: Simplify right side
    70,849.69x = 3,814,857,656.88
  5. Step 5: Solve for x
    x = 3,814,857,656.88/70,849.69
  6. Step 6: Final answer
    x = 53,844.38

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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.