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Finding the Fourth Proportional to 74,873.63, 103,324.82 and 40,882.01

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Solution

The fourth proportional to 74,873.63, 103,324.82 and 40,882.01 is: 56,416.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,873.63 : 103,324.82 = 40,882.01 : x
  2. Step 2: Convert to fraction form
    74,873.63/103,324.82 = 40,882.01/x
  3. Step 3: Cross multiply
    74,873.63x = 103,324.82 × 40,882.01
  4. Step 4: Simplify right side
    74,873.63x = 4,224,126,531.70
  5. Step 5: Solve for x
    x = 4,224,126,531.70/74,873.63
  6. Step 6: Final answer
    x = 56,416.74

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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.