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Finding the Fourth Proportional to 69,259.99, 103,884.42 and 30,803.39

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Solution

The fourth proportional to 69,259.99, 103,884.42 and 30,803.39 is: 46,202.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,259.99 : 103,884.42 = 30,803.39 : x
  2. Step 2: Convert to fraction form
    69,259.99/103,884.42 = 30,803.39/x
  3. Step 3: Cross multiply
    69,259.99x = 103,884.42 × 30,803.39
  4. Step 4: Simplify right side
    69,259.99x = 3,199,992,289.84
  5. Step 5: Solve for x
    x = 3,199,992,289.84/69,259.99
  6. Step 6: Final answer
    x = 46,202.61

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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.