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Finding the Fourth Proportional to 155,751.56, 214,939.41 and 92,095.28

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Solution

The fourth proportional to 155,751.56, 214,939.41 and 92,095.28 is: 127,092.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,751.56 : 214,939.41 = 92,095.28 : x
  2. Step 2: Convert to fraction form
    155,751.56/214,939.41 = 92,095.28/x
  3. Step 3: Cross multiply
    155,751.56x = 214,939.41 × 92,095.28
  4. Step 4: Simplify right side
    155,751.56x = 19,794,905,146.98
  5. Step 5: Solve for x
    x = 19,794,905,146.98/155,751.56
  6. Step 6: Final answer
    x = 127,092.82

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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.