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Finding the Fourth Proportional to 191,090.93, 263,731.06 and 123,304.97

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Solution

The fourth proportional to 191,090.93, 263,731.06 and 123,304.97 is: 170,177.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,090.93 : 263,731.06 = 123,304.97 : x
  2. Step 2: Convert to fraction form
    191,090.93/263,731.06 = 123,304.97/x
  3. Step 3: Cross multiply
    191,090.93x = 263,731.06 × 123,304.97
  4. Step 4: Simplify right side
    191,090.93x = 32,519,351,254.83
  5. Step 5: Solve for x
    x = 32,519,351,254.83/191,090.93
  6. Step 6: Final answer
    x = 170,177.37

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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.