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Finding the Fourth Proportional to 255,992.32, 383,905.04 and 121,043.04

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Solution

The fourth proportional to 255,992.32, 383,905.04 and 121,043.04 is: 181,525.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,992.32 : 383,905.04 = 121,043.04 : x
  2. Step 2: Convert to fraction form
    255,992.32/383,905.04 = 121,043.04/x
  3. Step 3: Cross multiply
    255,992.32x = 383,905.04 × 121,043.04
  4. Step 4: Simplify right side
    255,992.32x = 46,469,033,112.92
  5. Step 5: Solve for x
    x = 46,469,033,112.92/255,992.32
  6. Step 6: Final answer
    x = 181,525.11

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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.