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Finding the Fourth Proportional to 119,042.35, 178,563.53 and 92,766.76

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Solution

The fourth proportional to 119,042.35, 178,563.53 and 92,766.76 is: 139,150.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,042.35 : 178,563.53 = 92,766.76 : x
  2. Step 2: Convert to fraction form
    119,042.35/178,563.53 = 92,766.76/x
  3. Step 3: Cross multiply
    119,042.35x = 178,563.53 × 92,766.76
  4. Step 4: Simplify right side
    119,042.35x = 16,564,759,668.43
  5. Step 5: Solve for x
    x = 16,564,759,668.43/119,042.35
  6. Step 6: Final answer
    x = 139,150.14

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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.