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Finding the Fourth Proportional to 269,990.58, 405,051.48 and 83,002.08

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Solution

The fourth proportional to 269,990.58, 405,051.48 and 83,002.08 is: 124,523.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,990.58 : 405,051.48 = 83,002.08 : x
  2. Step 2: Convert to fraction form
    269,990.58/405,051.48 = 83,002.08/x
  3. Step 3: Cross multiply
    269,990.58x = 405,051.48 × 83,002.08
  4. Step 4: Simplify right side
    269,990.58x = 33,620,114,354.16
  5. Step 5: Solve for x
    x = 33,620,114,354.16/269,990.58
  6. Step 6: Final answer
    x = 124,523.29

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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.