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Finding the Fourth Proportional to 275,484.90, 413,386.89 and 115,546.60

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Solution

The fourth proportional to 275,484.90, 413,386.89 and 115,546.60 is: 173,386.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,484.90 : 413,386.89 = 115,546.60 : x
  2. Step 2: Convert to fraction form
    275,484.90/413,386.89 = 115,546.60/x
  3. Step 3: Cross multiply
    275,484.90x = 413,386.89 × 115,546.60
  4. Step 4: Simplify right side
    275,484.90x = 47,765,450,357.46
  5. Step 5: Solve for x
    x = 47,765,450,357.46/275,484.90
  6. Step 6: Final answer
    x = 173,386.82

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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.