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Finding the Fourth Proportional to 106,912.65, 160,369.65 and 28,026.18

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Solution

The fourth proportional to 106,912.65, 160,369.65 and 28,026.18 is: 42,039.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,912.65 : 160,369.65 = 28,026.18 : x
  2. Step 2: Convert to fraction form
    106,912.65/160,369.65 = 28,026.18/x
  3. Step 3: Cross multiply
    106,912.65x = 160,369.65 × 28,026.18
  4. Step 4: Simplify right side
    106,912.65x = 4,494,548,677.44
  5. Step 5: Solve for x
    x = 4,494,548,677.44/106,912.65
  6. Step 6: Final answer
    x = 42,039.45

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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.