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Finding the Fourth Proportional to 207,712.47, 311,568.71 and 49,940.93

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Solution

The fourth proportional to 207,712.47, 311,568.71 and 49,940.93 is: 74,911.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,712.47 : 311,568.71 = 49,940.93 : x
  2. Step 2: Convert to fraction form
    207,712.47/311,568.71 = 49,940.93/x
  3. Step 3: Cross multiply
    207,712.47x = 311,568.71 × 49,940.93
  4. Step 4: Simplify right side
    207,712.47x = 15,560,031,136.30
  5. Step 5: Solve for x
    x = 15,560,031,136.30/207,712.47
  6. Step 6: Final answer
    x = 74,911.40

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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.