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Finding the Fourth Proportional to 161,722.20, 242,583.30 and 160,685.40

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Solution

The fourth proportional to 161,722.20, 242,583.30 and 160,685.40 is: 241,028.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,722.20 : 242,583.30 = 160,685.40 : x
  2. Step 2: Convert to fraction form
    161,722.20/242,583.30 = 160,685.40/x
  3. Step 3: Cross multiply
    161,722.20x = 242,583.30 × 160,685.40
  4. Step 4: Simplify right side
    161,722.20x = 38,979,594,593.82
  5. Step 5: Solve for x
    x = 38,979,594,593.82/161,722.20
  6. Step 6: Final answer
    x = 241,028.10

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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.