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Finding the Fourth Proportional to 178,877.69, 268,439.55 and 73,696.66

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Solution

The fourth proportional to 178,877.69, 268,439.55 and 73,696.66 is: 110,595.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,877.69 : 268,439.55 = 73,696.66 : x
  2. Step 2: Convert to fraction form
    178,877.69/268,439.55 = 73,696.66/x
  3. Step 3: Cross multiply
    178,877.69x = 268,439.55 × 73,696.66
  4. Step 4: Simplify right side
    178,877.69x = 19,783,098,246.90
  5. Step 5: Solve for x
    x = 19,783,098,246.90/178,877.69
  6. Step 6: Final answer
    x = 110,595.67

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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.