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Finding the Fourth Proportional to 455,226.30, 682,839.45 and 155,607.30

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Solution

The fourth proportional to 455,226.30, 682,839.45 and 155,607.30 is: 233,410.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,226.30 : 682,839.45 = 155,607.30 : x
  2. Step 2: Convert to fraction form
    455,226.30/682,839.45 = 155,607.30/x
  3. Step 3: Cross multiply
    455,226.30x = 682,839.45 × 155,607.30
  4. Step 4: Simplify right side
    455,226.30x = 106,254,803,147.99
  5. Step 5: Solve for x
    x = 106,254,803,147.99/455,226.30
  6. Step 6: Final answer
    x = 233,410.95

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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.