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Finding the Fourth Proportional to 178,806.03, 268,443.59 and 119,905.35

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Solution

The fourth proportional to 178,806.03, 268,443.59 and 119,905.35 is: 180,015.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,806.03 : 268,443.59 = 119,905.35 : x
  2. Step 2: Convert to fraction form
    178,806.03/268,443.59 = 119,905.35/x
  3. Step 3: Cross multiply
    178,806.03x = 268,443.59 × 119,905.35
  4. Step 4: Simplify right side
    178,806.03x = 32,187,822,614.21
  5. Step 5: Solve for x
    x = 32,187,822,614.21/178,806.03
  6. Step 6: Final answer
    x = 180,015.31

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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.