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Finding the Fourth Proportional to 75,276.49, 103,881.56 and 41,742.49

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Solution

The fourth proportional to 75,276.49, 103,881.56 and 41,742.49 is: 57,604.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,276.49 : 103,881.56 = 41,742.49 : x
  2. Step 2: Convert to fraction form
    75,276.49/103,881.56 = 41,742.49/x
  3. Step 3: Cross multiply
    75,276.49x = 103,881.56 × 41,742.49
  4. Step 4: Simplify right side
    75,276.49x = 4,336,275,232.81
  5. Step 5: Solve for x
    x = 4,336,275,232.81/75,276.49
  6. Step 6: Final answer
    x = 57,604.64

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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.