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Finding the Fourth Proportional to 184,512.10, 276,768.15 and 127,431.40

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Solution

The fourth proportional to 184,512.10, 276,768.15 and 127,431.40 is: 191,147.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,512.10 : 276,768.15 = 127,431.40 : x
  2. Step 2: Convert to fraction form
    184,512.10/276,768.15 = 127,431.40/x
  3. Step 3: Cross multiply
    184,512.10x = 276,768.15 × 127,431.40
  4. Step 4: Simplify right side
    184,512.10x = 35,268,952,829.91
  5. Step 5: Solve for x
    x = 35,268,952,829.91/184,512.10
  6. Step 6: Final answer
    x = 191,147.10

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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.