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Finding the Fourth Proportional to 79,078.84, 118,613.14 and 29,829.56

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Solution

The fourth proportional to 79,078.84, 118,613.14 and 29,829.56 is: 44,742.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,078.84 : 118,613.14 = 29,829.56 : x
  2. Step 2: Convert to fraction form
    79,078.84/118,613.14 = 29,829.56/x
  3. Step 3: Cross multiply
    79,078.84x = 118,613.14 × 29,829.56
  4. Step 4: Simplify right side
    79,078.84x = 3,538,177,776.42
  5. Step 5: Solve for x
    x = 3,538,177,776.42/79,078.84
  6. Step 6: Final answer
    x = 44,742.41

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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.