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Finding the Fourth Proportional to 123,636.99, 185,453.44 and 39,396.01

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Solution

The fourth proportional to 123,636.99, 185,453.44 and 39,396.01 is: 59,093.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,636.99 : 185,453.44 = 39,396.01 : x
  2. Step 2: Convert to fraction form
    123,636.99/185,453.44 = 39,396.01/x
  3. Step 3: Cross multiply
    123,636.99x = 185,453.44 × 39,396.01
  4. Step 4: Simplify right side
    123,636.99x = 7,306,125,510.11
  5. Step 5: Solve for x
    x = 7,306,125,510.11/123,636.99
  6. Step 6: Final answer
    x = 59,093.36

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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.