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Finding the Fourth Proportional to 202,186.40, 303,250.80 and 69,072.80

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Solution

The fourth proportional to 202,186.40, 303,250.80 and 69,072.80 is: 103,599.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,186.40 : 303,250.80 = 69,072.80 : x
  2. Step 2: Convert to fraction form
    202,186.40/303,250.80 = 69,072.80/x
  3. Step 3: Cross multiply
    202,186.40x = 303,250.80 × 69,072.80
  4. Step 4: Simplify right side
    202,186.40x = 20,946,381,858.24
  5. Step 5: Solve for x
    x = 20,946,381,858.24/202,186.40
  6. Step 6: Final answer
    x = 103,599.36

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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.