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Finding the Fourth Proportional to 162,978.57, 244,418.12 and 112,700.81

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Solution

The fourth proportional to 162,978.57, 244,418.12 and 112,700.81 is: 169,016.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,978.57 : 244,418.12 = 112,700.81 : x
  2. Step 2: Convert to fraction form
    162,978.57/244,418.12 = 112,700.81/x
  3. Step 3: Cross multiply
    162,978.57x = 244,418.12 × 112,700.81
  4. Step 4: Simplify right side
    162,978.57x = 27,546,120,102.68
  5. Step 5: Solve for x
    x = 27,546,120,102.68/162,978.57
  6. Step 6: Final answer
    x = 169,016.82

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.