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Finding the Fourth Proportional to 121,041.44, 167,039.52 and 70,769.60

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Solution

The fourth proportional to 121,041.44, 167,039.52 and 70,769.60 is: 97,663.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,041.44 : 167,039.52 = 70,769.60 : x
  2. Step 2: Convert to fraction form
    121,041.44/167,039.52 = 70,769.60/x
  3. Step 3: Cross multiply
    121,041.44x = 167,039.52 × 70,769.60
  4. Step 4: Simplify right side
    121,041.44x = 11,821,320,014.59
  5. Step 5: Solve for x
    x = 11,821,320,014.59/121,041.44
  6. Step 6: Final answer
    x = 97,663.41

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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.