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Finding the Fourth Proportional to 303,155.86, 418,350.81 and 175,853.02

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Solution

The fourth proportional to 303,155.86, 418,350.81 and 175,853.02 is: 242,674.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,155.86 : 418,350.81 = 175,853.02 : x
  2. Step 2: Convert to fraction form
    303,155.86/418,350.81 = 175,853.02/x
  3. Step 3: Cross multiply
    303,155.86x = 418,350.81 × 175,853.02
  4. Step 4: Simplify right side
    303,155.86x = 73,568,253,357.95
  5. Step 5: Solve for x
    x = 73,568,253,357.95/303,155.86
  6. Step 6: Final answer
    x = 242,674.69

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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.