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Finding the Fourth Proportional to 121,143.56, 167,202.24 and 70,164.68

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Solution

The fourth proportional to 121,143.56, 167,202.24 and 70,164.68 is: 96,841.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,143.56 : 167,202.24 = 70,164.68 : x
  2. Step 2: Convert to fraction form
    121,143.56/167,202.24 = 70,164.68/x
  3. Step 3: Cross multiply
    121,143.56x = 167,202.24 × 70,164.68
  4. Step 4: Simplify right side
    121,143.56x = 11,731,691,664.88
  5. Step 5: Solve for x
    x = 11,731,691,664.88/121,143.56
  6. Step 6: Final answer
    x = 96,841.23

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1.5x scale

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.