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Finding the Fourth Proportional to 218,406.50, 327,611.55 and 60,647.24

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Solution

The fourth proportional to 218,406.50, 327,611.55 and 60,647.24 is: 90,971.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,406.50 : 327,611.55 = 60,647.24 : x
  2. Step 2: Convert to fraction form
    218,406.50/327,611.55 = 60,647.24/x
  3. Step 3: Cross multiply
    218,406.50x = 327,611.55 × 60,647.24
  4. Step 4: Simplify right side
    218,406.50x = 19,868,736,299.62
  5. Step 5: Solve for x
    x = 19,868,736,299.62/218,406.50
  6. Step 6: Final answer
    x = 90,971.36

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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.