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Finding the Fourth Proportional to 168,060.10, 252,090.15 and 155,229.70

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Solution

The fourth proportional to 168,060.10, 252,090.15 and 155,229.70 is: 232,844.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,060.10 : 252,090.15 = 155,229.70 : x
  2. Step 2: Convert to fraction form
    168,060.10/252,090.15 = 155,229.70/x
  3. Step 3: Cross multiply
    168,060.10x = 252,090.15 × 155,229.70
  4. Step 4: Simplify right side
    168,060.10x = 39,131,878,357.46
  5. Step 5: Solve for x
    x = 39,131,878,357.46/168,060.10
  6. Step 6: Final answer
    x = 232,844.55

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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.