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Finding the Fourth Proportional to 79,142.96, 118,715.95 and 29,197.34

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Solution

The fourth proportional to 79,142.96, 118,715.95 and 29,197.34 is: 43,796.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,142.96 : 118,715.95 = 29,197.34 : x
  2. Step 2: Convert to fraction form
    79,142.96/118,715.95 = 29,197.34/x
  3. Step 3: Cross multiply
    79,142.96x = 118,715.95 × 29,197.34
  4. Step 4: Simplify right side
    79,142.96x = 3,466,190,288.86
  5. Step 5: Solve for x
    x = 3,466,190,288.86/79,142.96
  6. Step 6: Final answer
    x = 43,796.57

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1.5x scale

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.