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Finding the Fourth Proportional to 236,272.80, 354,409.20 and 161,623.20

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Solution

The fourth proportional to 236,272.80, 354,409.20 and 161,623.20 is: 242,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,272.80 : 354,409.20 = 161,623.20 : x
  2. Step 2: Convert to fraction form
    236,272.80/354,409.20 = 161,623.20/x
  3. Step 3: Cross multiply
    236,272.80x = 354,409.20 × 161,623.20
  4. Step 4: Simplify right side
    236,272.80x = 57,280,749,013.44
  5. Step 5: Solve for x
    x = 57,280,749,013.44/236,272.80
  6. Step 6: Final answer
    x = 242,434.80

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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.