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Finding the Fourth Proportional to 177,860.40, 266,936.40 and 172,028.40

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Solution

The fourth proportional to 177,860.40, 266,936.40 and 172,028.40 is: 258,183.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,860.40 : 266,936.40 = 172,028.40 : x
  2. Step 2: Convert to fraction form
    177,860.40/266,936.40 = 172,028.40/x
  3. Step 3: Cross multiply
    177,860.40x = 266,936.40 × 172,028.40
  4. Step 4: Simplify right side
    177,860.40x = 45,920,641,793.76
  5. Step 5: Solve for x
    x = 45,920,641,793.76/177,860.40
  6. Step 6: Final answer
    x = 258,183.62

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1.5x scale

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.