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Finding the Fourth Proportional to 106,912.60, 160,407.30 and 103,072.60

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Solution

The fourth proportional to 106,912.60, 160,407.30 and 103,072.60 is: 154,645.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,912.60 : 160,407.30 = 103,072.60 : x
  2. Step 2: Convert to fraction form
    106,912.60/160,407.30 = 103,072.60/x
  3. Step 3: Cross multiply
    106,912.60x = 160,407.30 × 103,072.60
  4. Step 4: Simplify right side
    106,912.60x = 16,533,597,469.98
  5. Step 5: Solve for x
    x = 16,533,597,469.98/106,912.60
  6. Step 6: Final answer
    x = 154,645.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.