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Finding the Fourth Proportional to 75,668.82, 104,435.22 and 43,856.16

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Solution

The fourth proportional to 75,668.82, 104,435.22 and 43,856.16 is: 60,528.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,668.82 : 104,435.22 = 43,856.16 : x
  2. Step 2: Convert to fraction form
    75,668.82/104,435.22 = 43,856.16/x
  3. Step 3: Cross multiply
    75,668.82x = 104,435.22 × 43,856.16
  4. Step 4: Simplify right side
    75,668.82x = 4,580,127,717.96
  5. Step 5: Solve for x
    x = 4,580,127,717.96/75,668.82
  6. Step 6: Final answer
    x = 60,528.60

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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.