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Finding the Fourth Proportional to 203,906.69, 281,493.51 and 127,468.31

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Solution

The fourth proportional to 203,906.69, 281,493.51 and 127,468.31 is: 175,970.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,906.69 : 281,493.51 = 127,468.31 : x
  2. Step 2: Convert to fraction form
    203,906.69/281,493.51 = 127,468.31/x
  3. Step 3: Cross multiply
    203,906.69x = 281,493.51 × 127,468.31
  4. Step 4: Simplify right side
    203,906.69x = 35,881,501,995.67
  5. Step 5: Solve for x
    x = 35,881,501,995.67/203,906.69
  6. Step 6: Final answer
    x = 175,970.20

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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.