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Finding the Fourth Proportional to 86,485.50, 119,350.11 and 48,247.52

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Solution

The fourth proportional to 86,485.50, 119,350.11 and 48,247.52 is: 66,581.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,485.50 : 119,350.11 = 48,247.52 : x
  2. Step 2: Convert to fraction form
    86,485.50/119,350.11 = 48,247.52/x
  3. Step 3: Cross multiply
    86,485.50x = 119,350.11 × 48,247.52
  4. Step 4: Simplify right side
    86,485.50x = 5,758,346,222.48
  5. Step 5: Solve for x
    x = 5,758,346,222.48/86,485.50
  6. Step 6: Final answer
    x = 66,581.64

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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.