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Finding the Fourth Proportional to 541,322.40, 811,906.80 and 167,383.20

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Solution

The fourth proportional to 541,322.40, 811,906.80 and 167,383.20 is: 251,051.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,322.40 : 811,906.80 = 167,383.20 : x
  2. Step 2: Convert to fraction form
    541,322.40/811,906.80 = 167,383.20/x
  3. Step 3: Cross multiply
    541,322.40x = 811,906.80 × 167,383.20
  4. Step 4: Simplify right side
    541,322.40x = 135,899,558,285.76
  5. Step 5: Solve for x
    x = 135,899,558,285.76/541,322.40
  6. Step 6: Final answer
    x = 251,051.05

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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.