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Finding the Fourth Proportional to 230,935.80, 346,403.70 and 220,110.15

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Solution

The fourth proportional to 230,935.80, 346,403.70 and 220,110.15 is: 330,165.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,935.80 : 346,403.70 = 220,110.15 : x
  2. Step 2: Convert to fraction form
    230,935.80/346,403.70 = 220,110.15/x
  3. Step 3: Cross multiply
    230,935.80x = 346,403.70 × 220,110.15
  4. Step 4: Simplify right side
    230,935.80x = 76,246,970,367.56
  5. Step 5: Solve for x
    x = 76,246,970,367.56/230,935.80
  6. Step 6: Final answer
    x = 330,165.23

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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.