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Finding the Fourth Proportional to 181,747.40, 272,102.70 and 161,011.40

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Solution

The fourth proportional to 181,747.40, 272,102.70 and 161,011.40 is: 241,057.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,747.40 : 272,102.70 = 161,011.40 : x
  2. Step 2: Convert to fraction form
    181,747.40/272,102.70 = 161,011.40/x
  3. Step 3: Cross multiply
    181,747.40x = 272,102.70 × 161,011.40
  4. Step 4: Simplify right side
    181,747.40x = 43,811,636,670.78
  5. Step 5: Solve for x
    x = 43,811,636,670.78/181,747.40
  6. Step 6: Final answer
    x = 241,057.85

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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.