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Finding the Fourth Proportional to 207,367.34, 311,105.33 and 65,206.88

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Solution

The fourth proportional to 207,367.34, 311,105.33 and 65,206.88 is: 97,827.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,367.34 : 311,105.33 = 65,206.88 : x
  2. Step 2: Convert to fraction form
    207,367.34/311,105.33 = 65,206.88/x
  3. Step 3: Cross multiply
    207,367.34x = 311,105.33 × 65,206.88
  4. Step 4: Simplify right side
    207,367.34x = 20,286,207,920.67
  5. Step 5: Solve for x
    x = 20,286,207,920.67/207,367.34
  6. Step 6: Final answer
    x = 97,827.40

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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.