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Finding the Fourth Proportional to 92,739.30, 139,026.54 and 33,561.92

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Solution

The fourth proportional to 92,739.30, 139,026.54 and 33,561.92 is: 50,313.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,739.30 : 139,026.54 = 33,561.92 : x
  2. Step 2: Convert to fraction form
    92,739.30/139,026.54 = 33,561.92/x
  3. Step 3: Cross multiply
    92,739.30x = 139,026.54 × 33,561.92
  4. Step 4: Simplify right side
    92,739.30x = 4,665,997,613.36
  5. Step 5: Solve for x
    x = 4,665,997,613.36/92,739.30
  6. Step 6: Final answer
    x = 50,313.06

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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.