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Finding the Fourth Proportional to 144,122.84, 198,884.22 and 80,463.32

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Solution

The fourth proportional to 144,122.84, 198,884.22 and 80,463.32 is: 111,036.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,122.84 : 198,884.22 = 80,463.32 : x
  2. Step 2: Convert to fraction form
    144,122.84/198,884.22 = 80,463.32/x
  3. Step 3: Cross multiply
    144,122.84x = 198,884.22 × 80,463.32
  4. Step 4: Simplify right side
    144,122.84x = 16,002,884,636.81
  5. Step 5: Solve for x
    x = 16,002,884,636.81/144,122.84
  6. Step 6: Final answer
    x = 111,036.42

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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.