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Finding the Fourth Proportional to 202,660.40, 303,996.74 and 69,538.76

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Solution

The fourth proportional to 202,660.40, 303,996.74 and 69,538.76 is: 104,310.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,660.40 : 303,996.74 = 69,538.76 : x
  2. Step 2: Convert to fraction form
    202,660.40/303,996.74 = 69,538.76/x
  3. Step 3: Cross multiply
    202,660.40x = 303,996.74 × 69,538.76
  4. Step 4: Simplify right side
    202,660.40x = 21,139,556,343.64
  5. Step 5: Solve for x
    x = 21,139,556,343.64/202,660.40
  6. Step 6: Final answer
    x = 104,310.25

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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.