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Finding the Fourth Proportional to 181,698.40, 273,008.40 and 161,423.20

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Solution

The fourth proportional to 181,698.40, 273,008.40 and 161,423.20 is: 242,544.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,698.40 : 273,008.40 = 161,423.20 : x
  2. Step 2: Convert to fraction form
    181,698.40/273,008.40 = 161,423.20/x
  3. Step 3: Cross multiply
    181,698.40x = 273,008.40 × 161,423.20
  4. Step 4: Simplify right side
    181,698.40x = 44,069,889,554.88
  5. Step 5: Solve for x
    x = 44,069,889,554.88/181,698.40
  6. Step 6: Final answer
    x = 242,544.18

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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.