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Finding the Fourth Proportional to 236,319.84, 354,483 and 131,803.20

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Solution

The fourth proportional to 236,319.84, 354,483 and 131,803.20 is: 197,706.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,319.84 : 354,483 = 131,803.20 : x
  2. Step 2: Convert to fraction form
    236,319.84/354,483 = 131,803.20/x
  3. Step 3: Cross multiply
    236,319.84x = 354,483 × 131,803.20
  4. Step 4: Simplify right side
    236,319.84x = 46,721,993,745.60
  5. Step 5: Solve for x
    x = 46,721,993,745.60/236,319.84
  6. Step 6: Final answer
    x = 197,706.61

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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.