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Finding the Fourth Proportional to 144,294.48, 199,122.56 and 80,632.80

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Solution

The fourth proportional to 144,294.48, 199,122.56 and 80,632.80 is: 111,271.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,294.48 : 199,122.56 = 80,632.80 : x
  2. Step 2: Convert to fraction form
    144,294.48/199,122.56 = 80,632.80/x
  3. Step 3: Cross multiply
    144,294.48x = 199,122.56 × 80,632.80
  4. Step 4: Simplify right side
    144,294.48x = 16,055,809,555.97
  5. Step 5: Solve for x
    x = 16,055,809,555.97/144,294.48
  6. Step 6: Final answer
    x = 111,271.13

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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.