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Finding the Fourth Proportional to 114,469.60, 171,704.40 and 108,018.40

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Solution

The fourth proportional to 114,469.60, 171,704.40 and 108,018.40 is: 162,027.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,469.60 : 171,704.40 = 108,018.40 : x
  2. Step 2: Convert to fraction form
    114,469.60/171,704.40 = 108,018.40/x
  3. Step 3: Cross multiply
    114,469.60x = 171,704.40 × 108,018.40
  4. Step 4: Simplify right side
    114,469.60x = 18,547,234,560.96
  5. Step 5: Solve for x
    x = 18,547,234,560.96/114,469.60
  6. Step 6: Final answer
    x = 162,027.60

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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.