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Finding the Fourth Proportional to 220,175.42, 330,394.34 and 79,944.98

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Solution

The fourth proportional to 220,175.42, 330,394.34 and 79,944.98 is: 119,965.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,175.42 : 330,394.34 = 79,944.98 : x
  2. Step 2: Convert to fraction form
    220,175.42/330,394.34 = 79,944.98/x
  3. Step 3: Cross multiply
    220,175.42x = 330,394.34 × 79,944.98
  4. Step 4: Simplify right side
    220,175.42x = 26,413,366,851.72
  5. Step 5: Solve for x
    x = 26,413,366,851.72/220,175.42
  6. Step 6: Final answer
    x = 119,965.11

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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.