Home / 192,685.12-289,027.68-52,443.52

Finding the Fourth Proportional to 192,685.12, 289,027.68 and 52,443.52

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Solution

The fourth proportional to 192,685.12, 289,027.68 and 52,443.52 is: 78,665.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,685.12 : 289,027.68 = 52,443.52 : x
  2. Step 2: Convert to fraction form
    192,685.12/289,027.68 = 52,443.52/x
  3. Step 3: Cross multiply
    192,685.12x = 289,027.68 × 52,443.52
  4. Step 4: Simplify right side
    192,685.12x = 15,157,628,916.63
  5. Step 5: Solve for x
    x = 15,157,628,916.63/192,685.12
  6. Step 6: Final answer
    x = 78,665.28

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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.