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Finding the Fourth Proportional to 118,634.89, 177,968 and 43,807.63

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Solution

The fourth proportional to 118,634.89, 177,968 and 43,807.63 is: 65,717.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,634.89 : 177,968 = 43,807.63 : x
  2. Step 2: Convert to fraction form
    118,634.89/177,968 = 43,807.63/x
  3. Step 3: Cross multiply
    118,634.89x = 177,968 × 43,807.63
  4. Step 4: Simplify right side
    118,634.89x = 7,796,356,295.84
  5. Step 5: Solve for x
    x = 7,796,356,295.84/118,634.89
  6. Step 6: Final answer
    x = 65,717.23

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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.