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Finding the Fourth Proportional to 303,318.69, 418,581.59 and 167,350.47

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Solution

The fourth proportional to 303,318.69, 418,581.59 and 167,350.47 is: 230,944.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,318.69 : 418,581.59 = 167,350.47 : x
  2. Step 2: Convert to fraction form
    303,318.69/418,581.59 = 167,350.47/x
  3. Step 3: Cross multiply
    303,318.69x = 418,581.59 × 167,350.47
  4. Step 4: Simplify right side
    303,318.69x = 70,049,824,983.10
  5. Step 5: Solve for x
    x = 70,049,824,983.10/303,318.69
  6. Step 6: Final answer
    x = 230,944.64

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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.