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Finding the Fourth Proportional to 197,199.55, 295,902.60 and 90,615.70

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Solution

The fourth proportional to 197,199.55, 295,902.60 and 90,615.70 is: 135,971.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,199.55 : 295,902.60 = 90,615.70 : x
  2. Step 2: Convert to fraction form
    197,199.55/295,902.60 = 90,615.70/x
  3. Step 3: Cross multiply
    197,199.55x = 295,902.60 × 90,615.70
  4. Step 4: Simplify right side
    197,199.55x = 26,813,421,230.82
  5. Step 5: Solve for x
    x = 26,813,421,230.82/197,199.55
  6. Step 6: Final answer
    x = 135,971.01

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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.