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Finding the Fourth Proportional to 69,514.80, 104,272.20 and 34,522.80

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Solution

The fourth proportional to 69,514.80, 104,272.20 and 34,522.80 is: 51,784.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,514.80 : 104,272.20 = 34,522.80 : x
  2. Step 2: Convert to fraction form
    69,514.80/104,272.20 = 34,522.80/x
  3. Step 3: Cross multiply
    69,514.80x = 104,272.20 × 34,522.80
  4. Step 4: Simplify right side
    69,514.80x = 3,599,768,306.16
  5. Step 5: Solve for x
    x = 3,599,768,306.16/69,514.80
  6. Step 6: Final answer
    x = 51,784.20

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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.