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Finding the Fourth Proportional to 255,753.11, 383,629.73 and 113,564.97

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Solution

The fourth proportional to 255,753.11, 383,629.73 and 113,564.97 is: 170,347.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,753.11 : 383,629.73 = 113,564.97 : x
  2. Step 2: Convert to fraction form
    255,753.11/383,629.73 = 113,564.97/x
  3. Step 3: Cross multiply
    255,753.11x = 383,629.73 × 113,564.97
  4. Step 4: Simplify right side
    255,753.11x = 43,566,898,210.73
  5. Step 5: Solve for x
    x = 43,566,898,210.73/255,753.11
  6. Step 6: Final answer
    x = 170,347.48

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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.