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Finding the Fourth Proportional to 181,992.40, 272,859.30 and 69,577.96

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Solution

The fourth proportional to 181,992.40, 272,859.30 and 69,577.96 is: 104,317.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,992.40 : 272,859.30 = 69,577.96 : x
  2. Step 2: Convert to fraction form
    181,992.40/272,859.30 = 69,577.96/x
  3. Step 3: Cross multiply
    181,992.40x = 272,859.30 × 69,577.96
  4. Step 4: Simplify right side
    181,992.40x = 18,984,993,461.03
  5. Step 5: Solve for x
    x = 18,984,993,461.03/181,992.40
  6. Step 6: Final answer
    x = 104,317.51

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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.