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Finding the Fourth Proportional to 144,055.49, 198,797.31 and 79,523.57

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Solution

The fourth proportional to 144,055.49, 198,797.31 and 79,523.57 is: 109,742.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,055.49 : 198,797.31 = 79,523.57 : x
  2. Step 2: Convert to fraction form
    144,055.49/198,797.31 = 79,523.57/x
  3. Step 3: Cross multiply
    144,055.49x = 198,797.31 × 79,523.57
  4. Step 4: Simplify right side
    144,055.49x = 15,809,072,518.25
  5. Step 5: Solve for x
    x = 15,809,072,518.25/144,055.49
  6. Step 6: Final answer
    x = 109,742.94

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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.