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Finding the Fourth Proportional to 159,863.88, 239,953.86 and 84,984.24

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Solution

The fourth proportional to 159,863.88, 239,953.86 and 84,984.24 is: 127,560.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,863.88 : 239,953.86 = 84,984.24 : x
  2. Step 2: Convert to fraction form
    159,863.88/239,953.86 = 84,984.24/x
  3. Step 3: Cross multiply
    159,863.88x = 239,953.86 × 84,984.24
  4. Step 4: Simplify right side
    159,863.88x = 20,392,296,427.17
  5. Step 5: Solve for x
    x = 20,392,296,427.17/159,863.88
  6. Step 6: Final answer
    x = 127,560.37

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1.5x scale

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.