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Finding the Fourth Proportional to 207,069.60, 310,604.40 and 197,446.80

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Solution

The fourth proportional to 207,069.60, 310,604.40 and 197,446.80 is: 296,170.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,069.60 : 310,604.40 = 197,446.80 : x
  2. Step 2: Convert to fraction form
    207,069.60/310,604.40 = 197,446.80/x
  3. Step 3: Cross multiply
    207,069.60x = 310,604.40 × 197,446.80
  4. Step 4: Simplify right side
    207,069.60x = 61,327,844,845.92
  5. Step 5: Solve for x
    x = 61,327,844,845.92/207,069.60
  6. Step 6: Final answer
    x = 296,170.20

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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.