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Finding the Fourth Proportional to 141,672.96, 212,469.12 and 48,176.64

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Solution

The fourth proportional to 141,672.96, 212,469.12 and 48,176.64 is: 72,251.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,672.96 : 212,469.12 = 48,176.64 : x
  2. Step 2: Convert to fraction form
    141,672.96/212,469.12 = 48,176.64/x
  3. Step 3: Cross multiply
    141,672.96x = 212,469.12 × 48,176.64
  4. Step 4: Simplify right side
    141,672.96x = 10,236,048,305.36
  5. Step 5: Solve for x
    x = 10,236,048,305.36/141,672.96
  6. Step 6: Final answer
    x = 72,251.25

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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.