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Finding the Fourth Proportional to 94,209.56, 129,879.29 and 75,154.01

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Solution

The fourth proportional to 94,209.56, 129,879.29 and 75,154.01 is: 103,608.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,209.56 : 129,879.29 = 75,154.01 : x
  2. Step 2: Convert to fraction form
    94,209.56/129,879.29 = 75,154.01/x
  3. Step 3: Cross multiply
    94,209.56x = 129,879.29 × 75,154.01
  4. Step 4: Simplify right side
    94,209.56x = 9,760,949,083.68
  5. Step 5: Solve for x
    x = 9,760,949,083.68/94,209.56
  6. Step 6: Final answer
    x = 103,608.90

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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.