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Finding the Fourth Proportional to 70,590.42, 105,903.99 and 26,229.96

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Solution

The fourth proportional to 70,590.42, 105,903.99 and 26,229.96 is: 39,351.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,590.42 : 105,903.99 = 26,229.96 : x
  2. Step 2: Convert to fraction form
    70,590.42/105,903.99 = 26,229.96/x
  3. Step 3: Cross multiply
    70,590.42x = 105,903.99 × 26,229.96
  4. Step 4: Simplify right side
    70,590.42x = 2,777,857,421.54
  5. Step 5: Solve for x
    x = 2,777,857,421.54/70,590.42
  6. Step 6: Final answer
    x = 39,351.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.