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Finding the Fourth Proportional to 245,489.28, 367,932 and 127,092.96

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Solution

The fourth proportional to 245,489.28, 367,932 and 127,092.96 is: 190,483.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,489.28 : 367,932 = 127,092.96 : x
  2. Step 2: Convert to fraction form
    245,489.28/367,932 = 127,092.96/x
  3. Step 3: Cross multiply
    245,489.28x = 367,932 × 127,092.96
  4. Step 4: Simplify right side
    245,489.28x = 46,761,566,958.72
  5. Step 5: Solve for x
    x = 46,761,566,958.72/245,489.28
  6. Step 6: Final answer
    x = 190,483.13

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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.