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Finding the Fourth Proportional to 70,893.10, 97,832.73 and 39,061.30

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Solution

The fourth proportional to 70,893.10, 97,832.73 and 39,061.30 is: 53,904.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,893.10 : 97,832.73 = 39,061.30 : x
  2. Step 2: Convert to fraction form
    70,893.10/97,832.73 = 39,061.30/x
  3. Step 3: Cross multiply
    70,893.10x = 97,832.73 × 39,061.30
  4. Step 4: Simplify right side
    70,893.10x = 3,821,473,616.35
  5. Step 5: Solve for x
    x = 3,821,473,616.35/70,893.10
  6. Step 6: Final answer
    x = 53,904.73

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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.