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Finding the Fourth Proportional to 117,042.72, 175,662.40 and 50,533.12

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Solution

The fourth proportional to 117,042.72, 175,662.40 and 50,533.12 is: 75,842.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,042.72 : 175,662.40 = 50,533.12 : x
  2. Step 2: Convert to fraction form
    117,042.72/175,662.40 = 50,533.12/x
  3. Step 3: Cross multiply
    117,042.72x = 175,662.40 × 50,533.12
  4. Step 4: Simplify right side
    117,042.72x = 8,876,769,138.69
  5. Step 5: Solve for x
    x = 8,876,769,138.69/117,042.72
  6. Step 6: Final answer
    x = 75,842.13

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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.