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Finding the Fourth Proportional to 74,842.67, 103,282.88 and 51,010.97

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Solution

The fourth proportional to 74,842.67, 103,282.88 and 51,010.97 is: 70,395.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,842.67 : 103,282.88 = 51,010.97 : x
  2. Step 2: Convert to fraction form
    74,842.67/103,282.88 = 51,010.97/x
  3. Step 3: Cross multiply
    74,842.67x = 103,282.88 × 51,010.97
  4. Step 4: Simplify right side
    74,842.67x = 5,268,559,121.72
  5. Step 5: Solve for x
    x = 5,268,559,121.72/74,842.67
  6. Step 6: Final answer
    x = 70,395.12

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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.