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Finding the Fourth Proportional to 167,821.70, 251,732.55 and 137,101.70

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Solution

The fourth proportional to 167,821.70, 251,732.55 and 137,101.70 is: 205,652.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,821.70 : 251,732.55 = 137,101.70 : x
  2. Step 2: Convert to fraction form
    167,821.70/251,732.55 = 137,101.70/x
  3. Step 3: Cross multiply
    167,821.70x = 251,732.55 × 137,101.70
  4. Step 4: Simplify right side
    167,821.70x = 34,512,960,550.34
  5. Step 5: Solve for x
    x = 34,512,960,550.34/167,821.70
  6. Step 6: Final answer
    x = 205,652.55

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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.