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Finding the Fourth Proportional to 119,143.41, 178,788.97 and 69,247.00

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Solution

The fourth proportional to 119,143.41, 178,788.97 and 69,247.00 is: 103,913.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,143.41 : 178,788.97 = 69,247.00 : x
  2. Step 2: Convert to fraction form
    119,143.41/178,788.97 = 69,247.00/x
  3. Step 3: Cross multiply
    119,143.41x = 178,788.97 × 69,247.00
  4. Step 4: Simplify right side
    119,143.41x = 12,380,600,115.64
  5. Step 5: Solve for x
    x = 12,380,600,115.64/119,143.41
  6. Step 6: Final answer
    x = 103,913.43

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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.