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Finding the Fourth Proportional to 561,187.69, 841,905.92 and 161,797.30

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Solution

The fourth proportional to 561,187.69, 841,905.92 and 161,797.30 is: 242,731.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,187.69 : 841,905.92 = 161,797.30 : x
  2. Step 2: Convert to fraction form
    561,187.69/841,905.92 = 161,797.30/x
  3. Step 3: Cross multiply
    561,187.69x = 841,905.92 × 161,797.30
  4. Step 4: Simplify right side
    561,187.69x = 136,218,099,691.50
  5. Step 5: Solve for x
    x = 136,218,099,691.50/561,187.69
  6. Step 6: Final answer
    x = 242,731.80

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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.