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Finding the Fourth Proportional to 79,219.95, 118,824.15 and 29,276.76

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Solution

The fourth proportional to 79,219.95, 118,824.15 and 29,276.76 is: 43,913.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,219.95 : 118,824.15 = 29,276.76 : x
  2. Step 2: Convert to fraction form
    79,219.95/118,824.15 = 29,276.76/x
  3. Step 3: Cross multiply
    79,219.95x = 118,824.15 × 29,276.76
  4. Step 4: Simplify right side
    79,219.95x = 3,478,786,121.75
  5. Step 5: Solve for x
    x = 3,478,786,121.75/79,219.95
  6. Step 6: Final answer
    x = 43,913.01

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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.