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Finding the Fourth Proportional to 70,926.87, 97,879.76 and 39,096.91

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Solution

The fourth proportional to 70,926.87, 97,879.76 and 39,096.91 is: 53,954.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,926.87 : 97,879.76 = 39,096.91 : x
  2. Step 2: Convert to fraction form
    70,926.87/97,879.76 = 39,096.91/x
  3. Step 3: Cross multiply
    70,926.87x = 97,879.76 × 39,096.91
  4. Step 4: Simplify right side
    70,926.87x = 3,826,796,241.02
  5. Step 5: Solve for x
    x = 3,826,796,241.02/70,926.87
  6. Step 6: Final answer
    x = 53,954.11

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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.