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Finding the Fourth Proportional to 197,251.20, 295,915.20 and 84,931.20

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Solution

The fourth proportional to 197,251.20, 295,915.20 and 84,931.20 is: 127,413.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,251.20 : 295,915.20 = 84,931.20 : x
  2. Step 2: Convert to fraction form
    197,251.20/295,915.20 = 84,931.20/x
  3. Step 3: Cross multiply
    197,251.20x = 295,915.20 × 84,931.20
  4. Step 4: Simplify right side
    197,251.20x = 25,132,433,034.24
  5. Step 5: Solve for x
    x = 25,132,433,034.24/197,251.20
  6. Step 6: Final answer
    x = 127,413.33

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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.