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Finding the Fourth Proportional to 74,793.15, 103,004.60 and 73,160.19

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Solution

The fourth proportional to 74,793.15, 103,004.60 and 73,160.19 is: 100,755.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,793.15 : 103,004.60 = 73,160.19 : x
  2. Step 2: Convert to fraction form
    74,793.15/103,004.60 = 73,160.19/x
  3. Step 3: Cross multiply
    74,793.15x = 103,004.60 × 73,160.19
  4. Step 4: Simplify right side
    74,793.15x = 7,535,835,741.07
  5. Step 5: Solve for x
    x = 7,535,835,741.07/74,793.15
  6. Step 6: Final answer
    x = 100,755.69

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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.