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Finding the Fourth Proportional to 295,991.20, 443,695.20 and 146,254.60

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Solution

The fourth proportional to 295,991.20, 443,695.20 and 146,254.60 is: 219,237.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,991.20 : 443,695.20 = 146,254.60 : x
  2. Step 2: Convert to fraction form
    295,991.20/443,695.20 = 146,254.60/x
  3. Step 3: Cross multiply
    295,991.20x = 443,695.20 × 146,254.60
  4. Step 4: Simplify right side
    295,991.20x = 64,892,463,997.92
  5. Step 5: Solve for x
    x = 64,892,463,997.92/295,991.20
  6. Step 6: Final answer
    x = 219,237.82

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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.