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Finding the Fourth Proportional to 185,161.50, 277,684.89 and 66,817.50

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Solution

The fourth proportional to 185,161.50, 277,684.89 and 66,817.50 is: 100,205.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,161.50 : 277,684.89 = 66,817.50 : x
  2. Step 2: Convert to fraction form
    185,161.50/277,684.89 = 66,817.50/x
  3. Step 3: Cross multiply
    185,161.50x = 277,684.89 × 66,817.50
  4. Step 4: Simplify right side
    185,161.50x = 18,554,210,137.58
  5. Step 5: Solve for x
    x = 18,554,210,137.58/185,161.50
  6. Step 6: Final answer
    x = 100,205.55

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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.