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Finding the Fourth Proportional to 144,503.56, 199,422.66 and 80,837.56

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Solution

The fourth proportional to 144,503.56, 199,422.66 and 80,837.56 is: 111,560.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,503.56 : 199,422.66 = 80,837.56 : x
  2. Step 2: Convert to fraction form
    144,503.56/199,422.66 = 80,837.56/x
  3. Step 3: Cross multiply
    144,503.56x = 199,422.66 × 80,837.56
  4. Step 4: Simplify right side
    144,503.56x = 16,120,841,243.11
  5. Step 5: Solve for x
    x = 16,120,841,243.11/144,503.56
  6. Step 6: Final answer
    x = 111,560.17

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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.