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Finding the Fourth Proportional to 391,453.65, 587,180.48 and 110,973.33

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Solution

The fourth proportional to 391,453.65, 587,180.48 and 110,973.33 is: 166,460.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,453.65 : 587,180.48 = 110,973.33 : x
  2. Step 2: Convert to fraction form
    391,453.65/587,180.48 = 110,973.33/x
  3. Step 3: Cross multiply
    391,453.65x = 587,180.48 × 110,973.33
  4. Step 4: Simplify right side
    391,453.65x = 65,161,372,621.73
  5. Step 5: Solve for x
    x = 65,161,372,621.73/391,453.65
  6. Step 6: Final answer
    x = 166,460.00

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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.