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Finding the Fourth Proportional to 303,674.06, 419,070.21 and 176,357.86

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Solution

The fourth proportional to 303,674.06, 419,070.21 and 176,357.86 is: 243,373.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,674.06 : 419,070.21 = 176,357.86 : x
  2. Step 2: Convert to fraction form
    303,674.06/419,070.21 = 176,357.86/x
  3. Step 3: Cross multiply
    303,674.06x = 419,070.21 × 176,357.86
  4. Step 4: Simplify right side
    303,674.06x = 73,906,323,716.33
  5. Step 5: Solve for x
    x = 73,906,323,716.33/303,674.06
  6. Step 6: Final answer
    x = 243,373.84

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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.