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Finding the Fourth Proportional to 102,752.44, 154,128.96 and 40,422.94

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Solution

The fourth proportional to 102,752.44, 154,128.96 and 40,422.94 is: 60,634.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,752.44 : 154,128.96 = 40,422.94 : x
  2. Step 2: Convert to fraction form
    102,752.44/154,128.96 = 40,422.94/x
  3. Step 3: Cross multiply
    102,752.44x = 154,128.96 × 40,422.94
  4. Step 4: Simplify right side
    102,752.44x = 6,230,345,317.02
  5. Step 5: Solve for x
    x = 6,230,345,317.02/102,752.44
  6. Step 6: Final answer
    x = 60,634.53

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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.