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Finding the Fourth Proportional to 144,468.10, 199,355.15 and 80,793.59

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Solution

The fourth proportional to 144,468.10, 199,355.15 and 80,793.59 is: 111,489.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,468.10 : 199,355.15 = 80,793.59 : x
  2. Step 2: Convert to fraction form
    144,468.10/199,355.15 = 80,793.59/x
  3. Step 3: Cross multiply
    144,468.10x = 199,355.15 × 80,793.59
  4. Step 4: Simplify right side
    144,468.10x = 16,106,618,253.49
  5. Step 5: Solve for x
    x = 16,106,618,253.49/144,468.10
  6. Step 6: Final answer
    x = 111,489.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.