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Finding the Fourth Proportional to 181,560.80, 272,341.20 and 162,207.20

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Solution

The fourth proportional to 181,560.80, 272,341.20 and 162,207.20 is: 243,310.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,560.80 : 272,341.20 = 162,207.20 : x
  2. Step 2: Convert to fraction form
    181,560.80/272,341.20 = 162,207.20/x
  3. Step 3: Cross multiply
    181,560.80x = 272,341.20 × 162,207.20
  4. Step 4: Simplify right side
    181,560.80x = 44,175,703,496.64
  5. Step 5: Solve for x
    x = 44,175,703,496.64/181,560.80
  6. Step 6: Final answer
    x = 243,310.80

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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.