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Finding the Fourth Proportional to 86,230, 119,004.24 and 48,507.04

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Solution

The fourth proportional to 86,230, 119,004.24 and 48,507.04 is: 66,943.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,230 : 119,004.24 = 48,507.04 : x
  2. Step 2: Convert to fraction form
    86,230/119,004.24 = 48,507.04/x
  3. Step 3: Cross multiply
    86,230x = 119,004.24 × 48,507.04
  4. Step 4: Simplify right side
    86,230x = 5,772,543,429.85
  5. Step 5: Solve for x
    x = 5,772,543,429.85/86,230
  6. Step 6: Final answer
    x = 66,943.56

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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.