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Finding the Fourth Proportional to 136,539.77, 204,668.31 and 52,279.52

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Solution

The fourth proportional to 136,539.77, 204,668.31 and 52,279.52 is: 78,365.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,539.77 : 204,668.31 = 52,279.52 : x
  2. Step 2: Convert to fraction form
    136,539.77/204,668.31 = 52,279.52/x
  3. Step 3: Cross multiply
    136,539.77x = 204,668.31 × 52,279.52
  4. Step 4: Simplify right side
    136,539.77x = 10,699,961,006.01
  5. Step 5: Solve for x
    x = 10,699,961,006.01/136,539.77
  6. Step 6: Final answer
    x = 78,365.16

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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.