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Finding the Fourth Proportional to 178,470.76, 267,661.34 and 73,318.76

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Solution

The fourth proportional to 178,470.76, 267,661.34 and 73,318.76 is: 109,959.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,470.76 : 267,661.34 = 73,318.76 : x
  2. Step 2: Convert to fraction form
    178,470.76/267,661.34 = 73,318.76/x
  3. Step 3: Cross multiply
    178,470.76x = 267,661.34 × 73,318.76
  4. Step 4: Simplify right side
    178,470.76x = 19,624,597,548.74
  5. Step 5: Solve for x
    x = 19,624,597,548.74/178,470.76
  6. Step 6: Final answer
    x = 109,959.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.