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Finding the Fourth Proportional to 103,216.53, 154,840.21 and 36,651.08

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Solution

The fourth proportional to 103,216.53, 154,840.21 and 36,651.08 is: 54,982.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,216.53 : 154,840.21 = 36,651.08 : x
  2. Step 2: Convert to fraction form
    103,216.53/154,840.21 = 36,651.08/x
  3. Step 3: Cross multiply
    103,216.53x = 154,840.21 × 36,651.08
  4. Step 4: Simplify right side
    103,216.53x = 5,675,061,219.40
  5. Step 5: Solve for x
    x = 5,675,061,219.40/103,216.53
  6. Step 6: Final answer
    x = 54,982.10

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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.