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Finding the Fourth Proportional to 75,493.64, 113,241.54 and 28,749.08

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Solution

The fourth proportional to 75,493.64, 113,241.54 and 28,749.08 is: 43,124.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,493.64 : 113,241.54 = 28,749.08 : x
  2. Step 2: Convert to fraction form
    75,493.64/113,241.54 = 28,749.08/x
  3. Step 3: Cross multiply
    75,493.64x = 113,241.54 × 28,749.08
  4. Step 4: Simplify right side
    75,493.64x = 3,255,590,092.78
  5. Step 5: Solve for x
    x = 3,255,590,092.78/75,493.64
  6. Step 6: Final answer
    x = 43,124.03

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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.