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Finding the Fourth Proportional to 561,187.19, 841,905.17 and 161,796.80

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Solution

The fourth proportional to 561,187.19, 841,905.17 and 161,796.80 is: 242,731.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,187.19 : 841,905.17 = 161,796.80 : x
  2. Step 2: Convert to fraction form
    561,187.19/841,905.17 = 161,796.80/x
  3. Step 3: Cross multiply
    561,187.19x = 841,905.17 × 161,796.80
  4. Step 4: Simplify right side
    561,187.19x = 136,217,557,390.95
  5. Step 5: Solve for x
    x = 136,217,557,390.95/561,187.19
  6. Step 6: Final answer
    x = 242,731.05

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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.