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Finding the Fourth Proportional to 162,355.72, 243,885.66 and 137,446.60

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Solution

The fourth proportional to 162,355.72, 243,885.66 and 137,446.60 is: 206,467.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,355.72 : 243,885.66 = 137,446.60 : x
  2. Step 2: Convert to fraction form
    162,355.72/243,885.66 = 137,446.60/x
  3. Step 3: Cross multiply
    162,355.72x = 243,885.66 × 137,446.60
  4. Step 4: Simplify right side
    162,355.72x = 33,521,254,755.76
  5. Step 5: Solve for x
    x = 33,521,254,755.76/162,355.72
  6. Step 6: Final answer
    x = 206,467.96

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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.