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Finding the Fourth Proportional to 295,689.80, 408,051.67 and 159,723.70

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Solution

The fourth proportional to 295,689.80, 408,051.67 and 159,723.70 is: 220,418.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,689.80 : 408,051.67 = 159,723.70 : x
  2. Step 2: Convert to fraction form
    295,689.80/408,051.67 = 159,723.70/x
  3. Step 3: Cross multiply
    295,689.80x = 408,051.67 × 159,723.70
  4. Step 4: Simplify right side
    295,689.80x = 65,175,522,523.58
  5. Step 5: Solve for x
    x = 65,175,522,523.58/295,689.80
  6. Step 6: Final answer
    x = 220,418.57

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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.