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Finding the Fourth Proportional to 207,063.85, 310,535.75 and 80,675.92

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Solution

The fourth proportional to 207,063.85, 310,535.75 and 80,675.92 is: 120,990.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,063.85 : 310,535.75 = 80,675.92 : x
  2. Step 2: Convert to fraction form
    207,063.85/310,535.75 = 80,675.92/x
  3. Step 3: Cross multiply
    207,063.85x = 310,535.75 × 80,675.92
  4. Step 4: Simplify right side
    207,063.85x = 25,052,756,144.42
  5. Step 5: Solve for x
    x = 25,052,756,144.42/207,063.85
  6. Step 6: Final answer
    x = 120,990.49

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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.