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Finding the Fourth Proportional to 103,673.51, 155,502.97 and 40,481.76

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Solution

The fourth proportional to 103,673.51, 155,502.97 and 40,481.76 is: 60,719.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,673.51 : 155,502.97 = 40,481.76 : x
  2. Step 2: Convert to fraction form
    103,673.51/155,502.97 = 40,481.76/x
  3. Step 3: Cross multiply
    103,673.51x = 155,502.97 × 40,481.76
  4. Step 4: Simplify right side
    103,673.51x = 6,295,033,910.83
  5. Step 5: Solve for x
    x = 6,295,033,910.83/103,673.51
  6. Step 6: Final answer
    x = 60,719.79

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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.