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Finding the Fourth Proportional to 157,969.86, 236,750.67 and 118,215.06

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Solution

The fourth proportional to 157,969.86, 236,750.67 and 118,215.06 is: 177,169.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,969.86 : 236,750.67 = 118,215.06 : x
  2. Step 2: Convert to fraction form
    157,969.86/236,750.67 = 118,215.06/x
  3. Step 3: Cross multiply
    157,969.86x = 236,750.67 × 118,215.06
  4. Step 4: Simplify right side
    157,969.86x = 27,987,494,659.09
  5. Step 5: Solve for x
    x = 27,987,494,659.09/157,969.86
  6. Step 6: Final answer
    x = 177,169.84

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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.