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Finding the Fourth Proportional to 161,280.80, 241,402.80 and 114,624.80

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Solution

The fourth proportional to 161,280.80, 241,402.80 and 114,624.80 is: 171,568.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,280.80 : 241,402.80 = 114,624.80 : x
  2. Step 2: Convert to fraction form
    161,280.80/241,402.80 = 114,624.80/x
  3. Step 3: Cross multiply
    161,280.80x = 241,402.80 × 114,624.80
  4. Step 4: Simplify right side
    161,280.80x = 27,670,747,669.44
  5. Step 5: Solve for x
    x = 27,670,747,669.44/161,280.80
  6. Step 6: Final answer
    x = 171,568.76

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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.