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Finding the Fourth Proportional to 157,969.36, 236,749.92 and 118,214.56

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Solution

The fourth proportional to 157,969.36, 236,749.92 and 118,214.56 is: 177,169.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,969.36 : 236,749.92 = 118,214.56 : x
  2. Step 2: Convert to fraction form
    157,969.36/236,749.92 = 118,214.56/x
  3. Step 3: Cross multiply
    157,969.36x = 236,749.92 × 118,214.56
  4. Step 4: Simplify right side
    157,969.36x = 27,987,287,622.84
  5. Step 5: Solve for x
    x = 27,987,287,622.84/157,969.36
  6. Step 6: Final answer
    x = 177,169.09

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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.