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Finding the Fourth Proportional to 212,364.44, 318,546.64 and 54,593.04

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Solution

The fourth proportional to 212,364.44, 318,546.64 and 54,593.04 is: 81,889.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,364.44 : 318,546.64 = 54,593.04 : x
  2. Step 2: Convert to fraction form
    212,364.44/318,546.64 = 54,593.04/x
  3. Step 3: Cross multiply
    212,364.44x = 318,546.64 × 54,593.04
  4. Step 4: Simplify right side
    212,364.44x = 17,390,429,459.39
  5. Step 5: Solve for x
    x = 17,390,429,459.39/212,364.44
  6. Step 6: Final answer
    x = 81,889.55

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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.