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Finding the Fourth Proportional to 303,486.80, 418,811.80 and 167,520.79

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Solution

The fourth proportional to 303,486.80, 418,811.80 and 167,520.79 is: 231,178.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,486.80 : 418,811.80 = 167,520.79 : x
  2. Step 2: Convert to fraction form
    303,486.80/418,811.80 = 167,520.79/x
  3. Step 3: Cross multiply
    303,486.80x = 418,811.80 × 167,520.79
  4. Step 4: Simplify right side
    303,486.80x = 70,159,683,597.32
  5. Step 5: Solve for x
    x = 70,159,683,597.32/303,486.80
  6. Step 6: Final answer
    x = 231,178.70

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.