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Finding the Fourth Proportional to 70,605.03, 105,923.30 and 23,856.69

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Solution

The fourth proportional to 70,605.03, 105,923.30 and 23,856.69 is: 35,790.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,605.03 : 105,923.30 = 23,856.69 : x
  2. Step 2: Convert to fraction form
    70,605.03/105,923.30 = 23,856.69/x
  3. Step 3: Cross multiply
    70,605.03x = 105,923.30 × 23,856.69
  4. Step 4: Simplify right side
    70,605.03x = 2,526,979,212.59
  5. Step 5: Solve for x
    x = 2,526,979,212.59/70,605.03
  6. Step 6: Final answer
    x = 35,790.36

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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.