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Finding the Fourth Proportional to 86,672.76, 119,630.16 and 48,968.88

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Solution

The fourth proportional to 86,672.76, 119,630.16 and 48,968.88 is: 67,589.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,672.76 : 119,630.16 = 48,968.88 : x
  2. Step 2: Convert to fraction form
    86,672.76/119,630.16 = 48,968.88/x
  3. Step 3: Cross multiply
    86,672.76x = 119,630.16 × 48,968.88
  4. Step 4: Simplify right side
    86,672.76x = 5,858,154,949.42
  5. Step 5: Solve for x
    x = 5,858,154,949.42/86,672.76
  6. Step 6: Final answer
    x = 67,589.34

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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.