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Finding the Fourth Proportional to 69,354.54, 104,031.81 and 16,764.02

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Solution

The fourth proportional to 69,354.54, 104,031.81 and 16,764.02 is: 25,146.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,354.54 : 104,031.81 = 16,764.02 : x
  2. Step 2: Convert to fraction form
    69,354.54/104,031.81 = 16,764.02/x
  3. Step 3: Cross multiply
    69,354.54x = 104,031.81 × 16,764.02
  4. Step 4: Simplify right side
    69,354.54x = 1,743,990,823.32
  5. Step 5: Solve for x
    x = 1,743,990,823.32/69,354.54
  6. Step 6: Final answer
    x = 25,146.02

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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.