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Finding the Fourth Proportional to 70,174.35, 96,841.04 and 39,961.89

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Solution

The fourth proportional to 70,174.35, 96,841.04 and 39,961.89 is: 55,147.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,174.35 : 96,841.04 = 39,961.89 : x
  2. Step 2: Convert to fraction form
    70,174.35/96,841.04 = 39,961.89/x
  3. Step 3: Cross multiply
    70,174.35x = 96,841.04 × 39,961.89
  4. Step 4: Simplify right side
    70,174.35x = 3,869,950,788.16
  5. Step 5: Solve for x
    x = 3,869,950,788.16/70,174.35
  6. Step 6: Final answer
    x = 55,147.65

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1.5x scale

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.