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Finding the Fourth Proportional to 74,182.05, 110,733.45 and 68,699.97

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Solution

The fourth proportional to 74,182.05, 110,733.45 and 68,699.97 is: 102,550.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,182.05 : 110,733.45 = 68,699.97 : x
  2. Step 2: Convert to fraction form
    74,182.05/110,733.45 = 68,699.97/x
  3. Step 3: Cross multiply
    74,182.05x = 110,733.45 × 68,699.97
  4. Step 4: Simplify right side
    74,182.05x = 7,607,384,693.00
  5. Step 5: Solve for x
    x = 7,607,384,693.00/74,182.05
  6. Step 6: Final answer
    x = 102,550.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.