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Finding the Fourth Proportional to 186,090.26, 278,913.02 and 67,622.90

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Solution

The fourth proportional to 186,090.26, 278,913.02 and 67,622.90 is: 101,353.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,090.26 : 278,913.02 = 67,622.90 : x
  2. Step 2: Convert to fraction form
    186,090.26/278,913.02 = 67,622.90/x
  3. Step 3: Cross multiply
    186,090.26x = 278,913.02 × 67,622.90
  4. Step 4: Simplify right side
    186,090.26x = 18,860,907,260.16
  5. Step 5: Solve for x
    x = 18,860,907,260.16/186,090.26
  6. Step 6: Final answer
    x = 101,353.54

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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.