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Finding the Fourth Proportional to 170,790.52, 235,169.16 and 154,770.76

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Solution

The fourth proportional to 170,790.52, 235,169.16 and 154,770.76 is: 213,110.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,790.52 : 235,169.16 = 154,770.76 : x
  2. Step 2: Convert to fraction form
    170,790.52/235,169.16 = 154,770.76/x
  3. Step 3: Cross multiply
    170,790.52x = 235,169.16 × 154,770.76
  4. Step 4: Simplify right side
    170,790.52x = 36,397,309,621.76
  5. Step 5: Solve for x
    x = 36,397,309,621.76/170,790.52
  6. Step 6: Final answer
    x = 213,110.83

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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.