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Finding the Fourth Proportional to 255,571.28, 383,330.22 and 113,418.98

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Solution

The fourth proportional to 255,571.28, 383,330.22 and 113,418.98 is: 170,116.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,571.28 : 383,330.22 = 113,418.98 : x
  2. Step 2: Convert to fraction form
    255,571.28/383,330.22 = 113,418.98/x
  3. Step 3: Cross multiply
    255,571.28x = 383,330.22 × 113,418.98
  4. Step 4: Simplify right side
    255,571.28x = 43,476,922,555.58
  5. Step 5: Solve for x
    x = 43,476,922,555.58/255,571.28
  6. Step 6: Final answer
    x = 170,116.62

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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.