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Finding the Fourth Proportional to 74,693.91, 112,040.46 and 43,083.48

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Solution

The fourth proportional to 74,693.91, 112,040.46 and 43,083.48 is: 64,624.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,693.91 : 112,040.46 = 43,083.48 : x
  2. Step 2: Convert to fraction form
    74,693.91/112,040.46 = 43,083.48/x
  3. Step 3: Cross multiply
    74,693.91x = 112,040.46 × 43,083.48
  4. Step 4: Simplify right side
    74,693.91x = 4,827,093,337.75
  5. Step 5: Solve for x
    x = 4,827,093,337.75/74,693.91
  6. Step 6: Final answer
    x = 64,624.99

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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.