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Finding the Fourth Proportional to 236,553.60, 354,927.60 and 86,865.60

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Solution

The fourth proportional to 236,553.60, 354,927.60 and 86,865.60 is: 130,334.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,553.60 : 354,927.60 = 86,865.60 : x
  2. Step 2: Convert to fraction form
    236,553.60/354,927.60 = 86,865.60/x
  3. Step 3: Cross multiply
    236,553.60x = 354,927.60 × 86,865.60
  4. Step 4: Simplify right side
    236,553.60x = 30,830,998,930.56
  5. Step 5: Solve for x
    x = 30,830,998,930.56/236,553.60
  6. Step 6: Final answer
    x = 130,334.09

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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.