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Finding the Fourth Proportional to 167,665.60, 251,206.80 and 137,922.40

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Solution

The fourth proportional to 167,665.60, 251,206.80 and 137,922.40 is: 206,643.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,665.60 : 251,206.80 = 137,922.40 : x
  2. Step 2: Convert to fraction form
    167,665.60/251,206.80 = 137,922.40/x
  3. Step 3: Cross multiply
    167,665.60x = 251,206.80 × 137,922.40
  4. Step 4: Simplify right side
    167,665.60x = 34,647,044,752.32
  5. Step 5: Solve for x
    x = 34,647,044,752.32/167,665.60
  6. Step 6: Final answer
    x = 206,643.73

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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.