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Finding the Fourth Proportional to 162,874.80, 244,968.30 and 145,816.20

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Solution

The fourth proportional to 162,874.80, 244,968.30 and 145,816.20 is: 219,311.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,874.80 : 244,968.30 = 145,816.20 : x
  2. Step 2: Convert to fraction form
    162,874.80/244,968.30 = 145,816.20/x
  3. Step 3: Cross multiply
    162,874.80x = 244,968.30 × 145,816.20
  4. Step 4: Simplify right side
    162,874.80x = 35,720,346,626.46
  5. Step 5: Solve for x
    x = 35,720,346,626.46/162,874.80
  6. Step 6: Final answer
    x = 219,311.68

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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.