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Finding the Fourth Proportional to 156,920.90, 235,122.15 and 133,592.90

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Solution

The fourth proportional to 156,920.90, 235,122.15 and 133,592.90 is: 200,168.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,920.90 : 235,122.15 = 133,592.90 : x
  2. Step 2: Convert to fraction form
    156,920.90/235,122.15 = 133,592.90/x
  3. Step 3: Cross multiply
    156,920.90x = 235,122.15 × 133,592.90
  4. Step 4: Simplify right side
    156,920.90x = 31,410,649,872.74
  5. Step 5: Solve for x
    x = 31,410,649,872.74/156,920.90
  6. Step 6: Final answer
    x = 200,168.68

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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.