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Finding the Fourth Proportional to 203,536.94, 280,697.12 and 127,063.11

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Solution

The fourth proportional to 203,536.94, 280,697.12 and 127,063.11 is: 175,232.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,536.94 : 280,697.12 = 127,063.11 : x
  2. Step 2: Convert to fraction form
    203,536.94/280,697.12 = 127,063.11/x
  3. Step 3: Cross multiply
    203,536.94x = 280,697.12 × 127,063.11
  4. Step 4: Simplify right side
    203,536.94x = 35,666,247,918.01
  5. Step 5: Solve for x
    x = 35,666,247,918.01/203,536.94
  6. Step 6: Final answer
    x = 175,232.31

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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.