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Finding the Fourth Proportional to 151,676.80, 227,515.20 and 145,844.80

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Solution

The fourth proportional to 151,676.80, 227,515.20 and 145,844.80 is: 218,767.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,676.80 : 227,515.20 = 145,844.80 : x
  2. Step 2: Convert to fraction form
    151,676.80/227,515.20 = 145,844.80/x
  3. Step 3: Cross multiply
    151,676.80x = 227,515.20 × 145,844.80
  4. Step 4: Simplify right side
    151,676.80x = 33,181,908,840.96
  5. Step 5: Solve for x
    x = 33,181,908,840.96/151,676.80
  6. Step 6: Final answer
    x = 218,767.20

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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.