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Finding the Fourth Proportional to 110,709.80, 166,064.70 and 104,586.20

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Solution

The fourth proportional to 110,709.80, 166,064.70 and 104,586.20 is: 156,879.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,709.80 : 166,064.70 = 104,586.20 : x
  2. Step 2: Convert to fraction form
    110,709.80/166,064.70 = 104,586.20/x
  3. Step 3: Cross multiply
    110,709.80x = 166,064.70 × 104,586.20
  4. Step 4: Simplify right side
    110,709.80x = 17,368,075,927.14
  5. Step 5: Solve for x
    x = 17,368,075,927.14/110,709.80
  6. Step 6: Final answer
    x = 156,879.30

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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.