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Finding the Fourth Proportional to 203,897.80, 305,846.70 and 151,409.80

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Solution

The fourth proportional to 203,897.80, 305,846.70 and 151,409.80 is: 227,114.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,897.80 : 305,846.70 = 151,409.80 : x
  2. Step 2: Convert to fraction form
    203,897.80/305,846.70 = 151,409.80/x
  3. Step 3: Cross multiply
    203,897.80x = 305,846.70 × 151,409.80
  4. Step 4: Simplify right side
    203,897.80x = 46,308,187,677.66
  5. Step 5: Solve for x
    x = 46,308,187,677.66/203,897.80
  6. Step 6: Final answer
    x = 227,114.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.