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Finding the Fourth Proportional to 75,992.58, 104,820.48 and 45,756.09

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Solution

The fourth proportional to 75,992.58, 104,820.48 and 45,756.09 is: 63,113.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,992.58 : 104,820.48 = 45,756.09 : x
  2. Step 2: Convert to fraction form
    75,992.58/104,820.48 = 45,756.09/x
  3. Step 3: Cross multiply
    75,992.58x = 104,820.48 × 45,756.09
  4. Step 4: Simplify right side
    75,992.58x = 4,796,175,316.72
  5. Step 5: Solve for x
    x = 4,796,175,316.72/75,992.58
  6. Step 6: Final answer
    x = 63,113.73

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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.