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Finding the Fourth Proportional to 392,767.92, 589,185.72 and 108,458.52

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Solution

The fourth proportional to 392,767.92, 589,185.72 and 108,458.52 is: 162,697.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,767.92 : 589,185.72 = 108,458.52 : x
  2. Step 2: Convert to fraction form
    392,767.92/589,185.72 = 108,458.52/x
  3. Step 3: Cross multiply
    392,767.92x = 589,185.72 × 108,458.52
  4. Step 4: Simplify right side
    392,767.92x = 63,902,211,196.33
  5. Step 5: Solve for x
    x = 63,902,211,196.33/392,767.92
  6. Step 6: Final answer
    x = 162,697.12

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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.