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Finding the Fourth Proportional to 75,820.48, 104,630.72 and 43,992.48

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Solution

The fourth proportional to 75,820.48, 104,630.72 and 43,992.48 is: 60,708.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,820.48 : 104,630.72 = 43,992.48 : x
  2. Step 2: Convert to fraction form
    75,820.48/104,630.72 = 43,992.48/x
  3. Step 3: Cross multiply
    75,820.48x = 104,630.72 × 43,992.48
  4. Step 4: Simplify right side
    75,820.48x = 4,602,964,856.99
  5. Step 5: Solve for x
    x = 4,602,964,856.99/75,820.48
  6. Step 6: Final answer
    x = 60,708.73

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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.