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Finding the Fourth Proportional to 120,079.44, 165,715.92 and 69,099.93

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Solution

The fourth proportional to 120,079.44, 165,715.92 and 69,099.93 is: 95,361.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,079.44 : 165,715.92 = 69,099.93 : x
  2. Step 2: Convert to fraction form
    120,079.44/165,715.92 = 69,099.93/x
  3. Step 3: Cross multiply
    120,079.44x = 165,715.92 × 69,099.93
  4. Step 4: Simplify right side
    120,079.44x = 11,450,958,471.89
  5. Step 5: Solve for x
    x = 11,450,958,471.89/120,079.44
  6. Step 6: Final answer
    x = 95,361.52

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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.