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Finding the Fourth Proportional to 118,076.56, 177,115.63 and 43,165.88

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Solution

The fourth proportional to 118,076.56, 177,115.63 and 43,165.88 is: 64,749.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,076.56 : 177,115.63 = 43,165.88 : x
  2. Step 2: Convert to fraction form
    118,076.56/177,115.63 = 43,165.88/x
  3. Step 3: Cross multiply
    118,076.56x = 177,115.63 × 43,165.88
  4. Step 4: Simplify right side
    118,076.56x = 7,645,352,030.70
  5. Step 5: Solve for x
    x = 7,645,352,030.70/118,076.56
  6. Step 6: Final answer
    x = 64,749.11

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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.