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Finding the Fourth Proportional to 166,820.80, 250,231.20 and 147,575.20

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Solution

The fourth proportional to 166,820.80, 250,231.20 and 147,575.20 is: 221,362.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,820.80 : 250,231.20 = 147,575.20 : x
  2. Step 2: Convert to fraction form
    166,820.80/250,231.20 = 147,575.20/x
  3. Step 3: Cross multiply
    166,820.80x = 250,231.20 × 147,575.20
  4. Step 4: Simplify right side
    166,820.80x = 36,927,919,386.24
  5. Step 5: Solve for x
    x = 36,927,919,386.24/166,820.80
  6. Step 6: Final answer
    x = 221,362.80

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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.