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Finding the Fourth Proportional to 70,033.80, 105,051.60 and 23,286.68

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Solution

The fourth proportional to 70,033.80, 105,051.60 and 23,286.68 is: 34,930.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,033.80 : 105,051.60 = 23,286.68 : x
  2. Step 2: Convert to fraction form
    70,033.80/105,051.60 = 23,286.68/x
  3. Step 3: Cross multiply
    70,033.80x = 105,051.60 × 23,286.68
  4. Step 4: Simplify right side
    70,033.80x = 2,446,302,992.69
  5. Step 5: Solve for x
    x = 2,446,302,992.69/70,033.80
  6. Step 6: Final answer
    x = 34,930.32

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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.