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Finding the Fourth Proportional to 147,604.76, 203,694.45 and 80,536.76

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Solution

The fourth proportional to 147,604.76, 203,694.45 and 80,536.76 is: 111,140.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,604.76 : 203,694.45 = 80,536.76 : x
  2. Step 2: Convert to fraction form
    147,604.76/203,694.45 = 80,536.76/x
  3. Step 3: Cross multiply
    147,604.76x = 203,694.45 × 80,536.76
  4. Step 4: Simplify right side
    147,604.76x = 16,404,891,032.98
  5. Step 5: Solve for x
    x = 16,404,891,032.98/147,604.76
  6. Step 6: Final answer
    x = 111,140.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.