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Finding the Fourth Proportional to 144,365.88, 199,227.52 and 80,696.84

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Solution

The fourth proportional to 144,365.88, 199,227.52 and 80,696.84 is: 111,363.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,365.88 : 199,227.52 = 80,696.84 : x
  2. Step 2: Convert to fraction form
    144,365.88/199,227.52 = 80,696.84/x
  3. Step 3: Cross multiply
    144,365.88x = 199,227.52 × 80,696.84
  4. Step 4: Simplify right side
    144,365.88x = 16,077,031,305.04
  5. Step 5: Solve for x
    x = 16,077,031,305.04/144,365.88
  6. Step 6: Final answer
    x = 111,363.10

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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.