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Finding the Fourth Proportional to 255,356.94, 383,021.01 and 113,161.26

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Solution

The fourth proportional to 255,356.94, 383,021.01 and 113,161.26 is: 169,735.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,356.94 : 383,021.01 = 113,161.26 : x
  2. Step 2: Convert to fraction form
    255,356.94/383,021.01 = 113,161.26/x
  3. Step 3: Cross multiply
    255,356.94x = 383,021.01 × 113,161.26
  4. Step 4: Simplify right side
    255,356.94x = 43,343,140,098.07
  5. Step 5: Solve for x
    x = 43,343,140,098.07/255,356.94
  6. Step 6: Final answer
    x = 169,735.51

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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.