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Finding the Fourth Proportional to 79,219.99, 118,856.46 and 25,914.39

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Solution

The fourth proportional to 79,219.99, 118,856.46 and 25,914.39 is: 38,880.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,219.99 : 118,856.46 = 25,914.39 : x
  2. Step 2: Convert to fraction form
    79,219.99/118,856.46 = 25,914.39/x
  3. Step 3: Cross multiply
    79,219.99x = 118,856.46 × 25,914.39
  4. Step 4: Simplify right side
    79,219.99x = 3,080,092,528.89
  5. Step 5: Solve for x
    x = 3,080,092,528.89/79,219.99
  6. Step 6: Final answer
    x = 38,880.24

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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.