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Finding the Fourth Proportional to 178,518.80, 267,446.84 and 127,813.20

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Solution

The fourth proportional to 178,518.80, 267,446.84 and 127,813.20 is: 191,482.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,518.80 : 267,446.84 = 127,813.20 : x
  2. Step 2: Convert to fraction form
    178,518.80/267,446.84 = 127,813.20/x
  3. Step 3: Cross multiply
    178,518.80x = 267,446.84 × 127,813.20
  4. Step 4: Simplify right side
    178,518.80x = 34,183,236,450.29
  5. Step 5: Solve for x
    x = 34,183,236,450.29/178,518.80
  6. Step 6: Final answer
    x = 191,482.56

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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.