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Finding the Fourth Proportional to 161,758.80, 242,638.20 and 151,917.30

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Solution

The fourth proportional to 161,758.80, 242,638.20 and 151,917.30 is: 227,875.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,758.80 : 242,638.20 = 151,917.30 : x
  2. Step 2: Convert to fraction form
    161,758.80/242,638.20 = 151,917.30/x
  3. Step 3: Cross multiply
    161,758.80x = 242,638.20 × 151,917.30
  4. Step 4: Simplify right side
    161,758.80x = 36,860,940,220.86
  5. Step 5: Solve for x
    x = 36,860,940,220.86/161,758.80
  6. Step 6: Final answer
    x = 227,875.95

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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.