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Finding the Fourth Proportional to 207,286.40, 310,929.60 and 195,622.40

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Solution

The fourth proportional to 207,286.40, 310,929.60 and 195,622.40 is: 293,433.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,286.40 : 310,929.60 = 195,622.40 : x
  2. Step 2: Convert to fraction form
    207,286.40/310,929.60 = 195,622.40/x
  3. Step 3: Cross multiply
    207,286.40x = 310,929.60 × 195,622.40
  4. Step 4: Simplify right side
    207,286.40x = 60,824,794,583.04
  5. Step 5: Solve for x
    x = 60,824,794,583.04/207,286.40
  6. Step 6: Final answer
    x = 293,433.60

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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.