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Finding the Fourth Proportional to 236,805.20, 355,409.40 and 96,664.40

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Solution

The fourth proportional to 236,805.20, 355,409.40 and 96,664.40 is: 145,078.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,805.20 : 355,409.40 = 96,664.40 : x
  2. Step 2: Convert to fraction form
    236,805.20/355,409.40 = 96,664.40/x
  3. Step 3: Cross multiply
    236,805.20x = 355,409.40 × 96,664.40
  4. Step 4: Simplify right side
    236,805.20x = 34,355,436,405.36
  5. Step 5: Solve for x
    x = 34,355,436,405.36/236,805.20
  6. Step 6: Final answer
    x = 145,078.89

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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.