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Finding the Fourth Proportional to 109,872.54, 151,627.08 and 62,133

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Solution

The fourth proportional to 109,872.54, 151,627.08 and 62,133 is: 85,745.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,872.54 : 151,627.08 = 62,133 : x
  2. Step 2: Convert to fraction form
    109,872.54/151,627.08 = 62,133/x
  3. Step 3: Cross multiply
    109,872.54x = 151,627.08 × 62,133
  4. Step 4: Simplify right side
    109,872.54x = 9,421,045,361.64
  5. Step 5: Solve for x
    x = 9,421,045,361.64/109,872.54
  6. Step 6: Final answer
    x = 85,745.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.