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Finding the Fourth Proportional to 121,633.13, 167,852.13 and 67,919.06

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Solution

The fourth proportional to 121,633.13, 167,852.13 and 67,919.06 is: 93,727.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,633.13 : 167,852.13 = 67,919.06 : x
  2. Step 2: Convert to fraction form
    121,633.13/167,852.13 = 67,919.06/x
  3. Step 3: Cross multiply
    121,633.13x = 167,852.13 × 67,919.06
  4. Step 4: Simplify right side
    121,633.13x = 11,400,358,888.60
  5. Step 5: Solve for x
    x = 11,400,358,888.60/121,633.13
  6. Step 6: Final answer
    x = 93,727.42

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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.