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Finding the Fourth Proportional to 181,704.40, 273,017.40 and 161,429.20

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Solution

The fourth proportional to 181,704.40, 273,017.40 and 161,429.20 is: 242,553.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,704.40 : 273,017.40 = 161,429.20 : x
  2. Step 2: Convert to fraction form
    181,704.40/273,017.40 = 161,429.20/x
  3. Step 3: Cross multiply
    181,704.40x = 273,017.40 × 161,429.20
  4. Step 4: Simplify right side
    181,704.40x = 44,072,980,468.08
  5. Step 5: Solve for x
    x = 44,072,980,468.08/181,704.40
  6. Step 6: Final answer
    x = 242,553.18

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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.