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Finding the Fourth Proportional to 118,858.41, 178,278.60 and 43,943.52

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Solution

The fourth proportional to 118,858.41, 178,278.60 and 43,943.52 is: 65,911.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,858.41 : 178,278.60 = 43,943.52 : x
  2. Step 2: Convert to fraction form
    118,858.41/178,278.60 = 43,943.52/x
  3. Step 3: Cross multiply
    118,858.41x = 178,278.60 × 43,943.52
  4. Step 4: Simplify right side
    118,858.41x = 7,834,189,224.67
  5. Step 5: Solve for x
    x = 7,834,189,224.67/118,858.41
  6. Step 6: Final answer
    x = 65,911.95

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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.