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Finding the Fourth Proportional to 339,912.38, 469,090.54 and 186,957.01

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Solution

The fourth proportional to 339,912.38, 469,090.54 and 186,957.01 is: 258,006.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,912.38 : 469,090.54 = 186,957.01 : x
  2. Step 2: Convert to fraction form
    339,912.38/469,090.54 = 186,957.01/x
  3. Step 3: Cross multiply
    339,912.38x = 469,090.54 × 186,957.01
  4. Step 4: Simplify right side
    339,912.38x = 87,699,765,597.74
  5. Step 5: Solve for x
    x = 87,699,765,597.74/339,912.38
  6. Step 6: Final answer
    x = 258,006.98

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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.