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Finding the Fourth Proportional to 79,079.84, 118,614.64 and 29,830.56

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Solution

The fourth proportional to 79,079.84, 118,614.64 and 29,830.56 is: 44,743.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,079.84 : 118,614.64 = 29,830.56 : x
  2. Step 2: Convert to fraction form
    79,079.84/118,614.64 = 29,830.56/x
  3. Step 3: Cross multiply
    79,079.84x = 118,614.64 × 29,830.56
  4. Step 4: Simplify right side
    79,079.84x = 3,538,341,135.40
  5. Step 5: Solve for x
    x = 3,538,341,135.40/79,079.84
  6. Step 6: Final answer
    x = 44,743.91

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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.