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Finding the Fourth Proportional to 361,816.30, 542,772.44 and 134,080.34

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Solution

The fourth proportional to 361,816.30, 542,772.44 and 134,080.34 is: 201,138.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,816.30 : 542,772.44 = 134,080.34 : x
  2. Step 2: Convert to fraction form
    361,816.30/542,772.44 = 134,080.34/x
  3. Step 3: Cross multiply
    361,816.30x = 542,772.44 × 134,080.34
  4. Step 4: Simplify right side
    361,816.30x = 72,775,114,989.96
  5. Step 5: Solve for x
    x = 72,775,114,989.96/361,816.30
  6. Step 6: Final answer
    x = 201,138.30

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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.