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Finding the Fourth Proportional to 199,167.60, 298,804.20 and 86,799.60

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Solution

The fourth proportional to 199,167.60, 298,804.20 and 86,799.60 is: 130,222.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,167.60 : 298,804.20 = 86,799.60 : x
  2. Step 2: Convert to fraction form
    199,167.60/298,804.20 = 86,799.60/x
  3. Step 3: Cross multiply
    199,167.60x = 298,804.20 × 86,799.60
  4. Step 4: Simplify right side
    199,167.60x = 25,936,085,038.32
  5. Step 5: Solve for x
    x = 25,936,085,038.32/199,167.60
  6. Step 6: Final answer
    x = 130,222.41

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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.