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Finding the Fourth Proportional to 57,309.74, 86,054.52 and 48,540.02

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Solution

The fourth proportional to 57,309.74, 86,054.52 and 48,540.02 is: 72,886.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,309.74 : 86,054.52 = 48,540.02 : x
  2. Step 2: Convert to fraction form
    57,309.74/86,054.52 = 48,540.02/x
  3. Step 3: Cross multiply
    57,309.74x = 86,054.52 × 48,540.02
  4. Step 4: Simplify right side
    57,309.74x = 4,177,088,121.89
  5. Step 5: Solve for x
    x = 4,177,088,121.89/57,309.74
  6. Step 6: Final answer
    x = 72,886.18

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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.