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Finding the Fourth Proportional to 136,562.94, 204,696.36 and 69,911.64

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Solution

The fourth proportional to 136,562.94, 204,696.36 and 69,911.64 is: 104,791.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,562.94 : 204,696.36 = 69,911.64 : x
  2. Step 2: Convert to fraction form
    136,562.94/204,696.36 = 69,911.64/x
  3. Step 3: Cross multiply
    136,562.94x = 204,696.36 × 69,911.64
  4. Step 4: Simplify right side
    136,562.94x = 14,310,658,229.63
  5. Step 5: Solve for x
    x = 14,310,658,229.63/136,562.94
  6. Step 6: Final answer
    x = 104,791.67

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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.