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Finding the Fourth Proportional to 240,739.99, 361,109.10 and 72,259.59

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Solution

The fourth proportional to 240,739.99, 361,109.10 and 72,259.59 is: 108,389.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,739.99 : 361,109.10 = 72,259.59 : x
  2. Step 2: Convert to fraction form
    240,739.99/361,109.10 = 72,259.59/x
  3. Step 3: Cross multiply
    240,739.99x = 361,109.10 × 72,259.59
  4. Step 4: Simplify right side
    240,739.99x = 26,093,595,511.27
  5. Step 5: Solve for x
    x = 26,093,595,511.27/240,739.99
  6. Step 6: Final answer
    x = 108,389.12

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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.