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Finding the Fourth Proportional to 69,188.84, 103,790.96 and 29,749.92

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Solution

The fourth proportional to 69,188.84, 103,790.96 and 29,749.92 is: 44,628.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,188.84 : 103,790.96 = 29,749.92 : x
  2. Step 2: Convert to fraction form
    69,188.84/103,790.96 = 29,749.92/x
  3. Step 3: Cross multiply
    69,188.84x = 103,790.96 × 29,749.92
  4. Step 4: Simplify right side
    69,188.84x = 3,087,772,756.72
  5. Step 5: Solve for x
    x = 3,087,772,756.72/69,188.84
  6. Step 6: Final answer
    x = 44,628.19

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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.