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Finding the Fourth Proportional to 74,953, 103,435.41 and 41,419

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Solution

The fourth proportional to 74,953, 103,435.41 and 41,419 is: 57,158.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,953 : 103,435.41 = 41,419 : x
  2. Step 2: Convert to fraction form
    74,953/103,435.41 = 41,419/x
  3. Step 3: Cross multiply
    74,953x = 103,435.41 × 41,419
  4. Step 4: Simplify right side
    74,953x = 4,284,191,246.79
  5. Step 5: Solve for x
    x = 4,284,191,246.79/74,953
  6. Step 6: Final answer
    x = 57,158.37

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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.