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Finding the Fourth Proportional to 118,069.01, 177,078.60 and 43,224.20

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Solution

The fourth proportional to 118,069.01, 177,078.60 and 43,224.20 is: 64,827.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,069.01 : 177,078.60 = 43,224.20 : x
  2. Step 2: Convert to fraction form
    118,069.01/177,078.60 = 43,224.20/x
  3. Step 3: Cross multiply
    118,069.01x = 177,078.60 × 43,224.20
  4. Step 4: Simplify right side
    118,069.01x = 7,654,079,936.73
  5. Step 5: Solve for x
    x = 7,654,079,936.73/118,069.01
  6. Step 6: Final answer
    x = 64,827.17

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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.