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Finding the Fourth Proportional to 162,446.35, 243,724.85 and 87,573.73

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Solution

The fourth proportional to 162,446.35, 243,724.85 and 87,573.73 is: 131,390.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,446.35 : 243,724.85 = 87,573.73 : x
  2. Step 2: Convert to fraction form
    162,446.35/243,724.85 = 87,573.73/x
  3. Step 3: Cross multiply
    162,446.35x = 243,724.85 × 87,573.73
  4. Step 4: Simplify right side
    162,446.35x = 21,343,894,208.19
  5. Step 5: Solve for x
    x = 21,343,894,208.19/162,446.35
  6. Step 6: Final answer
    x = 131,390.42

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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.