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Finding the Fourth Proportional to 281,051.99, 421,583.48 and 103,467.59

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Solution

The fourth proportional to 281,051.99, 421,583.48 and 103,467.59 is: 155,203.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,051.99 : 421,583.48 = 103,467.59 : x
  2. Step 2: Convert to fraction form
    281,051.99/421,583.48 = 103,467.59/x
  3. Step 3: Cross multiply
    281,051.99x = 421,583.48 × 103,467.59
  4. Step 4: Simplify right side
    281,051.99x = 43,620,226,142.08
  5. Step 5: Solve for x
    x = 43,620,226,142.08/281,051.99
  6. Step 6: Final answer
    x = 155,203.41

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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.