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Finding the Fourth Proportional to 454,378.93, 681,568.30 and 121,954.93

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Solution

The fourth proportional to 454,378.93, 681,568.30 and 121,954.93 is: 182,932.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,378.93 : 681,568.30 = 121,954.93 : x
  2. Step 2: Convert to fraction form
    454,378.93/681,568.30 = 121,954.93/x
  3. Step 3: Cross multiply
    454,378.93x = 681,568.30 × 121,954.93
  4. Step 4: Simplify right side
    454,378.93x = 83,120,614,316.72
  5. Step 5: Solve for x
    x = 83,120,614,316.72/454,378.93
  6. Step 6: Final answer
    x = 182,932.37

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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.