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Finding the Fourth Proportional to 197,118.80, 295,516.20 and 84,885.20

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Solution

The fourth proportional to 197,118.80, 295,516.20 and 84,885.20 is: 127,258.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,118.80 : 295,516.20 = 84,885.20 : x
  2. Step 2: Convert to fraction form
    197,118.80/295,516.20 = 84,885.20/x
  3. Step 3: Cross multiply
    197,118.80x = 295,516.20 × 84,885.20
  4. Step 4: Simplify right side
    197,118.80x = 25,084,951,740.24
  5. Step 5: Solve for x
    x = 25,084,951,740.24/197,118.80
  6. Step 6: Final answer
    x = 127,258.04

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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.