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Finding the Fourth Proportional to 255,379.14, 382,940.55 and 148,797.54

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Solution

The fourth proportional to 255,379.14, 382,940.55 and 148,797.54 is: 223,121.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,379.14 : 382,940.55 = 148,797.54 : x
  2. Step 2: Convert to fraction form
    255,379.14/382,940.55 = 148,797.54/x
  3. Step 3: Cross multiply
    255,379.14x = 382,940.55 × 148,797.54
  4. Step 4: Simplify right side
    255,379.14x = 56,980,611,806.25
  5. Step 5: Solve for x
    x = 56,980,611,806.25/255,379.14
  6. Step 6: Final answer
    x = 223,121.64

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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.