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Finding the Fourth Proportional to 162,978.68, 244,418.28 and 112,700.92

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Solution

The fourth proportional to 162,978.68, 244,418.28 and 112,700.92 is: 169,016.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,978.68 : 244,418.28 = 112,700.92 : x
  2. Step 2: Convert to fraction form
    162,978.68/244,418.28 = 112,700.92/x
  3. Step 3: Cross multiply
    162,978.68x = 244,418.28 × 112,700.92
  4. Step 4: Simplify right side
    162,978.68x = 27,546,164,445.43
  5. Step 5: Solve for x
    x = 27,546,164,445.43/162,978.68
  6. Step 6: Final answer
    x = 169,016.98

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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.