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Finding the Fourth Proportional to 303,375.09, 418,740.90 and 176,091.69

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Solution

The fourth proportional to 303,375.09, 418,740.90 and 176,091.69 is: 243,054.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,375.09 : 418,740.90 = 176,091.69 : x
  2. Step 2: Convert to fraction form
    303,375.09/418,740.90 = 176,091.69/x
  3. Step 3: Cross multiply
    303,375.09x = 418,740.90 × 176,091.69
  4. Step 4: Simplify right side
    303,375.09x = 73,736,792,753.12
  5. Step 5: Solve for x
    x = 73,736,792,753.12/303,375.09
  6. Step 6: Final answer
    x = 243,054.87

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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.