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Finding the Fourth Proportional to 170,072.40, 255,108.60 and 150,389.40

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Solution

The fourth proportional to 170,072.40, 255,108.60 and 150,389.40 is: 225,584.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,072.40 : 255,108.60 = 150,389.40 : x
  2. Step 2: Convert to fraction form
    170,072.40/255,108.60 = 150,389.40/x
  3. Step 3: Cross multiply
    170,072.40x = 255,108.60 × 150,389.40
  4. Step 4: Simplify right side
    170,072.40x = 38,365,629,288.84
  5. Step 5: Solve for x
    x = 38,365,629,288.84/170,072.40
  6. Step 6: Final answer
    x = 225,584.10

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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.