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Finding the Fourth Proportional to 240,858.81, 361,619.91 and 122,612.58

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Solution

The fourth proportional to 240,858.81, 361,619.91 and 122,612.58 is: 184,087.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,858.81 : 361,619.91 = 122,612.58 : x
  2. Step 2: Convert to fraction form
    240,858.81/361,619.91 = 122,612.58/x
  3. Step 3: Cross multiply
    240,858.81x = 361,619.91 × 122,612.58
  4. Step 4: Simplify right side
    240,858.81x = 44,339,150,144.47
  5. Step 5: Solve for x
    x = 44,339,150,144.47/240,858.81
  6. Step 6: Final answer
    x = 184,087.72

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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.