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Finding the Fourth Proportional to 255,627.54, 383,199.39 and 105,774.30

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Solution

The fourth proportional to 255,627.54, 383,199.39 and 105,774.30 is: 158,561.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,627.54 : 383,199.39 = 105,774.30 : x
  2. Step 2: Convert to fraction form
    255,627.54/383,199.39 = 105,774.30/x
  3. Step 3: Cross multiply
    255,627.54x = 383,199.39 × 105,774.30
  4. Step 4: Simplify right side
    255,627.54x = 40,532,647,237.68
  5. Step 5: Solve for x
    x = 40,532,647,237.68/255,627.54
  6. Step 6: Final answer
    x = 158,561.35

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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.