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Finding the Fourth Proportional to 74,653.20, 103,021.20 and 41,119.20

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Solution

The fourth proportional to 74,653.20, 103,021.20 and 41,119.20 is: 56,744.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,653.20 : 103,021.20 = 41,119.20 : x
  2. Step 2: Convert to fraction form
    74,653.20/103,021.20 = 41,119.20/x
  3. Step 3: Cross multiply
    74,653.20x = 103,021.20 × 41,119.20
  4. Step 4: Simplify right side
    74,653.20x = 4,236,149,327.04
  5. Step 5: Solve for x
    x = 4,236,149,327.04/74,653.20
  6. Step 6: Final answer
    x = 56,744.38

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1.5x scale

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.