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Finding the Fourth Proportional to 70,937.22, 97,893.66 and 39,105.42

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Solution

The fourth proportional to 70,937.22, 97,893.66 and 39,105.42 is: 53,965.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,937.22 : 97,893.66 = 39,105.42 : x
  2. Step 2: Convert to fraction form
    70,937.22/97,893.66 = 39,105.42/x
  3. Step 3: Cross multiply
    70,937.22x = 97,893.66 × 39,105.42
  4. Step 4: Simplify right side
    70,937.22x = 3,828,172,689.64
  5. Step 5: Solve for x
    x = 3,828,172,689.64/70,937.22
  6. Step 6: Final answer
    x = 53,965.64

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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.