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Finding the Fourth Proportional to 168,037.80, 252,056.70 and 118,174.20

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Solution

The fourth proportional to 168,037.80, 252,056.70 and 118,174.20 is: 177,261.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,037.80 : 252,056.70 = 118,174.20 : x
  2. Step 2: Convert to fraction form
    168,037.80/252,056.70 = 118,174.20/x
  3. Step 3: Cross multiply
    168,037.80x = 252,056.70 × 118,174.20
  4. Step 4: Simplify right side
    168,037.80x = 29,786,598,877.14
  5. Step 5: Solve for x
    x = 29,786,598,877.14/168,037.80
  6. Step 6: Final answer
    x = 177,261.30

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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.