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Finding the Fourth Proportional to 220,874.90, 331,312.35 and 150,890.90

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Solution

The fourth proportional to 220,874.90, 331,312.35 and 150,890.90 is: 226,336.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,874.90 : 331,312.35 = 150,890.90 : x
  2. Step 2: Convert to fraction form
    220,874.90/331,312.35 = 150,890.90/x
  3. Step 3: Cross multiply
    220,874.90x = 331,312.35 × 150,890.90
  4. Step 4: Simplify right side
    220,874.90x = 49,992,018,672.62
  5. Step 5: Solve for x
    x = 49,992,018,672.62/220,874.90
  6. Step 6: Final answer
    x = 226,336.35

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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.