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Finding the Fourth Proportional to 167,841.70, 231,621.55 and 92,390.20

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Solution

The fourth proportional to 167,841.70, 231,621.55 and 92,390.20 is: 127,498.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,841.70 : 231,621.55 = 92,390.20 : x
  2. Step 2: Convert to fraction form
    167,841.70/231,621.55 = 92,390.20/x
  3. Step 3: Cross multiply
    167,841.70x = 231,621.55 × 92,390.20
  4. Step 4: Simplify right side
    167,841.70x = 21,399,562,081.50
  5. Step 5: Solve for x
    x = 21,399,562,081.50/167,841.70
  6. Step 6: Final answer
    x = 127,498.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.