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Finding the Fourth Proportional to 69,224.68, 103,835.53 and 19,303.45

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Solution

The fourth proportional to 69,224.68, 103,835.53 and 19,303.45 is: 28,954.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,224.68 : 103,835.53 = 19,303.45 : x
  2. Step 2: Convert to fraction form
    69,224.68/103,835.53 = 19,303.45/x
  3. Step 3: Cross multiply
    69,224.68x = 103,835.53 × 19,303.45
  4. Step 4: Simplify right side
    69,224.68x = 2,004,383,548.07
  5. Step 5: Solve for x
    x = 2,004,383,548.07/69,224.68
  6. Step 6: Final answer
    x = 28,954.75

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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.