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Finding the Fourth Proportional to 166,840.20, 250,211.70 and 60,211.80

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Solution

The fourth proportional to 166,840.20, 250,211.70 and 60,211.80 is: 90,300.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,840.20 : 250,211.70 = 60,211.80 : x
  2. Step 2: Convert to fraction form
    166,840.20/250,211.70 = 60,211.80/x
  3. Step 3: Cross multiply
    166,840.20x = 250,211.70 × 60,211.80
  4. Step 4: Simplify right side
    166,840.20x = 15,065,696,838.06
  5. Step 5: Solve for x
    x = 15,065,696,838.06/166,840.20
  6. Step 6: Final answer
    x = 90,300.16

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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.