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Finding the Fourth Proportional to 159,382.82, 238,923.95 and 79,345.16

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Solution

The fourth proportional to 159,382.82, 238,923.95 and 79,345.16 is: 118,942.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,382.82 : 238,923.95 = 79,345.16 : x
  2. Step 2: Convert to fraction form
    159,382.82/238,923.95 = 79,345.16/x
  3. Step 3: Cross multiply
    159,382.82x = 238,923.95 × 79,345.16
  4. Step 4: Simplify right side
    159,382.82x = 18,957,457,449.24
  5. Step 5: Solve for x
    x = 18,957,457,449.24/159,382.82
  6. Step 6: Final answer
    x = 118,942.92

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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.