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Finding the Fourth Proportional to 207,510.84, 311,020.20 and 186,351.60

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Solution

The fourth proportional to 207,510.84, 311,020.20 and 186,351.60 is: 279,306.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,510.84 : 311,020.20 = 186,351.60 : x
  2. Step 2: Convert to fraction form
    207,510.84/311,020.20 = 186,351.60/x
  3. Step 3: Cross multiply
    207,510.84x = 311,020.20 × 186,351.60
  4. Step 4: Simplify right side
    207,510.84x = 57,959,111,902.32
  5. Step 5: Solve for x
    x = 57,959,111,902.32/207,510.84
  6. Step 6: Final answer
    x = 279,306.43

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1.5x scale

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.