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Finding the Fourth Proportional to 271,062.78, 374,056.53 and 156,346.13

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Solution

The fourth proportional to 271,062.78, 374,056.53 and 156,346.13 is: 215,751.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,062.78 : 374,056.53 = 156,346.13 : x
  2. Step 2: Convert to fraction form
    271,062.78/374,056.53 = 156,346.13/x
  3. Step 3: Cross multiply
    271,062.78x = 374,056.53 × 156,346.13
  4. Step 4: Simplify right side
    271,062.78x = 58,482,288,996.45
  5. Step 5: Solve for x
    x = 58,482,288,996.45/271,062.78
  6. Step 6: Final answer
    x = 215,751.82

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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.