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Finding the Fourth Proportional to 273,209.80, 409,814.70 and 167,686.60

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Solution

The fourth proportional to 273,209.80, 409,814.70 and 167,686.60 is: 251,529.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,209.80 : 409,814.70 = 167,686.60 : x
  2. Step 2: Convert to fraction form
    273,209.80/409,814.70 = 167,686.60/x
  3. Step 3: Cross multiply
    273,209.80x = 409,814.70 × 167,686.60
  4. Step 4: Simplify right side
    273,209.80x = 68,720,433,673.02
  5. Step 5: Solve for x
    x = 68,720,433,673.02/273,209.80
  6. Step 6: Final answer
    x = 251,529.90

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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.