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Finding the Fourth Proportional to 240,809.20, 361,199.97 and 72,325.80

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Solution

The fourth proportional to 240,809.20, 361,199.97 and 72,325.80 is: 108,484.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,809.20 : 361,199.97 = 72,325.80 : x
  2. Step 2: Convert to fraction form
    240,809.20/361,199.97 = 72,325.80/x
  3. Step 3: Cross multiply
    240,809.20x = 361,199.97 × 72,325.80
  4. Step 4: Simplify right side
    240,809.20x = 26,124,075,926.31
  5. Step 5: Solve for x
    x = 26,124,075,926.31/240,809.20
  6. Step 6: Final answer
    x = 108,484.54

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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.