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Finding the Fourth Proportional to 178,989.34, 247,006.17 and 98,422.03

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Solution

The fourth proportional to 178,989.34, 247,006.17 and 98,422.03 is: 135,822.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,989.34 : 247,006.17 = 98,422.03 : x
  2. Step 2: Convert to fraction form
    178,989.34/247,006.17 = 98,422.03/x
  3. Step 3: Cross multiply
    178,989.34x = 247,006.17 × 98,422.03
  4. Step 4: Simplify right side
    178,989.34x = 24,310,848,673.93
  5. Step 5: Solve for x
    x = 24,310,848,673.93/178,989.34
  6. Step 6: Final answer
    x = 135,822.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.