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Finding the Fourth Proportional to 274,934.80, 412,402.20 and 134,966.80

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Solution

The fourth proportional to 274,934.80, 412,402.20 and 134,966.80 is: 202,450.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,934.80 : 412,402.20 = 134,966.80 : x
  2. Step 2: Convert to fraction form
    274,934.80/412,402.20 = 134,966.80/x
  3. Step 3: Cross multiply
    274,934.80x = 412,402.20 × 134,966.80
  4. Step 4: Simplify right side
    274,934.80x = 55,660,605,246.96
  5. Step 5: Solve for x
    x = 55,660,605,246.96/274,934.80
  6. Step 6: Final answer
    x = 202,450.20

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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.