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Finding the Fourth Proportional to 197,145.60, 295,718.40 and 113,942.40

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Solution

The fourth proportional to 197,145.60, 295,718.40 and 113,942.40 is: 170,913.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,145.60 : 295,718.40 = 113,942.40 : x
  2. Step 2: Convert to fraction form
    197,145.60/295,718.40 = 113,942.40/x
  3. Step 3: Cross multiply
    197,145.60x = 295,718.40 × 113,942.40
  4. Step 4: Simplify right side
    197,145.60x = 33,694,864,220.16
  5. Step 5: Solve for x
    x = 33,694,864,220.16/197,145.60
  6. Step 6: Final answer
    x = 170,913.60

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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.