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Finding the Fourth Proportional to 218,846.53, 328,240.59 and 61,090.93

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Solution

The fourth proportional to 218,846.53, 328,240.59 and 61,090.93 is: 91,628.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,846.53 : 328,240.59 = 61,090.93 : x
  2. Step 2: Convert to fraction form
    218,846.53/328,240.59 = 61,090.93/x
  3. Step 3: Cross multiply
    218,846.53x = 328,240.59 × 61,090.93
  4. Step 4: Simplify right side
    218,846.53x = 20,052,522,906.85
  5. Step 5: Solve for x
    x = 20,052,522,906.85/218,846.53
  6. Step 6: Final answer
    x = 91,628.24

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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.