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Finding the Fourth Proportional to 121,673.26, 167,907.33 and 67,959.04

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Solution

The fourth proportional to 121,673.26, 167,907.33 and 67,959.04 is: 93,782.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,673.26 : 167,907.33 = 67,959.04 : x
  2. Step 2: Convert to fraction form
    121,673.26/167,907.33 = 67,959.04/x
  3. Step 3: Cross multiply
    121,673.26x = 167,907.33 × 67,959.04
  4. Step 4: Simplify right side
    121,673.26x = 11,410,820,955.76
  5. Step 5: Solve for x
    x = 11,410,820,955.76/121,673.26
  6. Step 6: Final answer
    x = 93,782.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.