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Finding the Fourth Proportional to 121,028.68, 167,024.20 and 67,317.58

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Solution

The fourth proportional to 121,028.68, 167,024.20 and 67,317.58 is: 92,900.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,028.68 : 167,024.20 = 67,317.58 : x
  2. Step 2: Convert to fraction form
    121,028.68/167,024.20 = 67,317.58/x
  3. Step 3: Cross multiply
    121,028.68x = 167,024.20 × 67,317.58
  4. Step 4: Simplify right side
    121,028.68x = 11,243,664,945.44
  5. Step 5: Solve for x
    x = 11,243,664,945.44/121,028.68
  6. Step 6: Final answer
    x = 92,900.83

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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.