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Finding the Fourth Proportional to 250,673.22, 345,945.50 and 137,495.97

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Solution

The fourth proportional to 250,673.22, 345,945.50 and 137,495.97 is: 189,753.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,673.22 : 345,945.50 = 137,495.97 : x
  2. Step 2: Convert to fraction form
    250,673.22/345,945.50 = 137,495.97/x
  3. Step 3: Cross multiply
    250,673.22x = 345,945.50 × 137,495.97
  4. Step 4: Simplify right side
    250,673.22x = 47,566,112,089.64
  5. Step 5: Solve for x
    x = 47,566,112,089.64/250,673.22
  6. Step 6: Final answer
    x = 189,753.47

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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.