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Finding the Fourth Proportional to 86,245.80, 119,010.78 and 48,519.24

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Solution

The fourth proportional to 86,245.80, 119,010.78 and 48,519.24 is: 66,951.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,245.80 : 119,010.78 = 48,519.24 : x
  2. Step 2: Convert to fraction form
    86,245.80/119,010.78 = 48,519.24/x
  3. Step 3: Cross multiply
    86,245.80x = 119,010.78 × 48,519.24
  4. Step 4: Simplify right side
    86,245.80x = 5,774,312,597.41
  5. Step 5: Solve for x
    x = 5,774,312,597.41/86,245.80
  6. Step 6: Final answer
    x = 66,951.81

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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.