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Finding the Fourth Proportional to 159,482.43, 239,371.88 and 80,653.23

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Solution

The fourth proportional to 159,482.43, 239,371.88 and 80,653.23 is: 121,054.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,482.43 : 239,371.88 = 80,653.23 : x
  2. Step 2: Convert to fraction form
    159,482.43/239,371.88 = 80,653.23/x
  3. Step 3: Cross multiply
    159,482.43x = 239,371.88 × 80,653.23
  4. Step 4: Simplify right side
    159,482.43x = 19,306,114,889.91
  5. Step 5: Solve for x
    x = 19,306,114,889.91/159,482.43
  6. Step 6: Final answer
    x = 121,054.81

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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.