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Finding the Fourth Proportional to 155,755.27, 233,629.54 and 43,432.49

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Solution

The fourth proportional to 155,755.27, 233,629.54 and 43,432.49 is: 65,147.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,755.27 : 233,629.54 = 43,432.49 : x
  2. Step 2: Convert to fraction form
    155,755.27/233,629.54 = 43,432.49/x
  3. Step 3: Cross multiply
    155,755.27x = 233,629.54 × 43,432.49
  4. Step 4: Simplify right side
    155,755.27x = 10,147,112,476.30
  5. Step 5: Solve for x
    x = 10,147,112,476.30/155,755.27
  6. Step 6: Final answer
    x = 65,147.80

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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.