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Finding the Fourth Proportional to 115,409.56, 173,136.79 and 44,327

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Solution

The fourth proportional to 115,409.56, 173,136.79 and 44,327 is: 66,499.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,409.56 : 173,136.79 = 44,327 : x
  2. Step 2: Convert to fraction form
    115,409.56/173,136.79 = 44,327/x
  3. Step 3: Cross multiply
    115,409.56x = 173,136.79 × 44,327
  4. Step 4: Simplify right side
    115,409.56x = 7,674,634,490.33
  5. Step 5: Solve for x
    x = 7,674,634,490.33/115,409.56
  6. Step 6: Final answer
    x = 66,499.12

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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.