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Finding the Fourth Proportional to 75,589.88, 113,253.74 and 45,945.48

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Solution

The fourth proportional to 75,589.88, 113,253.74 and 45,945.48 is: 68,838.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,589.88 : 113,253.74 = 45,945.48 : x
  2. Step 2: Convert to fraction form
    75,589.88/113,253.74 = 45,945.48/x
  3. Step 3: Cross multiply
    75,589.88x = 113,253.74 × 45,945.48
  4. Step 4: Simplify right side
    75,589.88x = 5,203,497,446.10
  5. Step 5: Solve for x
    x = 5,203,497,446.10/75,589.88
  6. Step 6: Final answer
    x = 68,838.55

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1.5x scale

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.