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Finding the Fourth Proportional to 177,912.40, 267,014.40 and 172,080.40

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Solution

The fourth proportional to 177,912.40, 267,014.40 and 172,080.40 is: 258,261.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,912.40 : 267,014.40 = 172,080.40 : x
  2. Step 2: Convert to fraction form
    177,912.40/267,014.40 = 172,080.40/x
  3. Step 3: Cross multiply
    177,912.40x = 267,014.40 × 172,080.40
  4. Step 4: Simplify right side
    177,912.40x = 45,947,944,757.76
  5. Step 5: Solve for x
    x = 45,947,944,757.76/177,912.40
  6. Step 6: Final answer
    x = 258,261.62

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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.