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Finding the Fourth Proportional to 162,817.22, 243,930.58 and 159,274.28

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Solution

The fourth proportional to 162,817.22, 243,930.58 and 159,274.28 is: 238,622.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,817.22 : 243,930.58 = 159,274.28 : x
  2. Step 2: Convert to fraction form
    162,817.22/243,930.58 = 159,274.28/x
  3. Step 3: Cross multiply
    162,817.22x = 243,930.58 × 159,274.28
  4. Step 4: Simplify right side
    162,817.22x = 38,851,867,499.48
  5. Step 5: Solve for x
    x = 38,851,867,499.48/162,817.22
  6. Step 6: Final answer
    x = 238,622.59

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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.