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Finding the Fourth Proportional to 86,359.68, 119,173.68 and 48,633.12

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Solution

The fourth proportional to 86,359.68, 119,173.68 and 48,633.12 is: 67,112.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,359.68 : 119,173.68 = 48,633.12 : x
  2. Step 2: Convert to fraction form
    86,359.68/119,173.68 = 48,633.12/x
  3. Step 3: Cross multiply
    86,359.68x = 119,173.68 × 48,633.12
  4. Step 4: Simplify right side
    86,359.68x = 5,795,787,880.28
  5. Step 5: Solve for x
    x = 5,795,787,880.28/86,359.68
  6. Step 6: Final answer
    x = 67,112.20

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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.