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Finding the Fourth Proportional to 86,049.12, 118,748.52 and 48,326.88

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Solution

The fourth proportional to 86,049.12, 118,748.52 and 48,326.88 is: 66,691.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,049.12 : 118,748.52 = 48,326.88 : x
  2. Step 2: Convert to fraction form
    86,049.12/118,748.52 = 48,326.88/x
  3. Step 3: Cross multiply
    86,049.12x = 118,748.52 × 48,326.88
  4. Step 4: Simplify right side
    86,049.12x = 5,738,745,476.22
  5. Step 5: Solve for x
    x = 5,738,745,476.22/86,049.12
  6. Step 6: Final answer
    x = 66,691.51

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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.