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Finding the Fourth Proportional to 271,027.76, 374,046 and 156,310.88

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Solution

The fourth proportional to 271,027.76, 374,046 and 156,310.88 is: 215,724.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,027.76 : 374,046 = 156,310.88 : x
  2. Step 2: Convert to fraction form
    271,027.76/374,046 = 156,310.88/x
  3. Step 3: Cross multiply
    271,027.76x = 374,046 × 156,310.88
  4. Step 4: Simplify right side
    271,027.76x = 58,467,459,420.48
  5. Step 5: Solve for x
    x = 58,467,459,420.48/271,027.76
  6. Step 6: Final answer
    x = 215,724.98

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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.