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Finding the Fourth Proportional to 363,927.06, 546,059.68 and 139,213.22

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Solution

The fourth proportional to 363,927.06, 546,059.68 and 139,213.22 is: 208,884.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,927.06 : 546,059.68 = 139,213.22 : x
  2. Step 2: Convert to fraction form
    363,927.06/546,059.68 = 139,213.22/x
  3. Step 3: Cross multiply
    363,927.06x = 546,059.68 × 139,213.22
  4. Step 4: Simplify right side
    363,927.06x = 76,018,723,286.64
  5. Step 5: Solve for x
    x = 76,018,723,286.64/363,927.06
  6. Step 6: Final answer
    x = 208,884.50

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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.