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Finding the Fourth Proportional to 303,881.76, 419,355.23 and 167,925.15

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Solution

The fourth proportional to 303,881.76, 419,355.23 and 167,925.15 is: 231,735.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,881.76 : 419,355.23 = 167,925.15 : x
  2. Step 2: Convert to fraction form
    303,881.76/419,355.23 = 167,925.15/x
  3. Step 3: Cross multiply
    303,881.76x = 419,355.23 × 167,925.15
  4. Step 4: Simplify right side
    303,881.76x = 70,420,289,061.41
  5. Step 5: Solve for x
    x = 70,420,289,061.41/303,881.76
  6. Step 6: Final answer
    x = 231,735.82

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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.