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Finding the Fourth Proportional to 174,773.40, 261,933.30 and 81,079.80

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Solution

The fourth proportional to 174,773.40, 261,933.30 and 81,079.80 is: 121,514.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,773.40 : 261,933.30 = 81,079.80 : x
  2. Step 2: Convert to fraction form
    174,773.40/261,933.30 = 81,079.80/x
  3. Step 3: Cross multiply
    174,773.40x = 261,933.30 × 81,079.80
  4. Step 4: Simplify right side
    174,773.40x = 21,237,499,577.34
  5. Step 5: Solve for x
    x = 21,237,499,577.34/174,773.40
  6. Step 6: Final answer
    x = 121,514.48

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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.