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Finding the Fourth Proportional to 74,378.69, 102,628.15 and 44,173.48

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Solution

The fourth proportional to 74,378.69, 102,628.15 and 44,173.48 is: 60,950.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,378.69 : 102,628.15 = 44,173.48 : x
  2. Step 2: Convert to fraction form
    74,378.69/102,628.15 = 44,173.48/x
  3. Step 3: Cross multiply
    74,378.69x = 102,628.15 × 44,173.48
  4. Step 4: Simplify right side
    74,378.69x = 4,533,442,531.46
  5. Step 5: Solve for x
    x = 4,533,442,531.46/74,378.69
  6. Step 6: Final answer
    x = 60,950.83

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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.