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Finding the Fourth Proportional to 479,205.37, 718,731.81 and 159,330.64

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Solution

The fourth proportional to 479,205.37, 718,731.81 and 159,330.64 is: 238,970.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,205.37 : 718,731.81 = 159,330.64 : x
  2. Step 2: Convert to fraction form
    479,205.37/718,731.81 = 159,330.64/x
  3. Step 3: Cross multiply
    479,205.37x = 718,731.81 × 159,330.64
  4. Step 4: Simplify right side
    479,205.37x = 114,515,999,275.66
  5. Step 5: Solve for x
    x = 114,515,999,275.66/479,205.37
  6. Step 6: Final answer
    x = 238,970.61

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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.