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Finding the Fourth Proportional to 104,231.54, 143,889.11 and 69,835.49

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Solution

The fourth proportional to 104,231.54, 143,889.11 and 69,835.49 is: 96,406.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,231.54 : 143,889.11 = 69,835.49 : x
  2. Step 2: Convert to fraction form
    104,231.54/143,889.11 = 69,835.49/x
  3. Step 3: Cross multiply
    104,231.54x = 143,889.11 × 69,835.49
  4. Step 4: Simplify right side
    104,231.54x = 10,048,567,110.21
  5. Step 5: Solve for x
    x = 10,048,567,110.21/104,231.54
  6. Step 6: Final answer
    x = 96,406.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.