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Finding the Fourth Proportional to 220,651.04, 304,499.76 and 120,049.76

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Solution

The fourth proportional to 220,651.04, 304,499.76 and 120,049.76 is: 165,669.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,651.04 : 304,499.76 = 120,049.76 : x
  2. Step 2: Convert to fraction form
    220,651.04/304,499.76 = 120,049.76/x
  3. Step 3: Cross multiply
    220,651.04x = 304,499.76 × 120,049.76
  4. Step 4: Simplify right side
    220,651.04x = 36,555,123,108.06
  5. Step 5: Solve for x
    x = 36,555,123,108.06/220,651.04
  6. Step 6: Final answer
    x = 165,669.39

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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.