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Finding the Fourth Proportional to 365,063.31, 546,262.79 and 215,375.31

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Solution

The fourth proportional to 365,063.31, 546,262.79 and 215,375.31 is: 322,277.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,063.31 : 546,262.79 = 215,375.31 : x
  2. Step 2: Convert to fraction form
    365,063.31/546,262.79 = 215,375.31/x
  3. Step 3: Cross multiply
    365,063.31x = 546,262.79 × 215,375.31
  4. Step 4: Simplify right side
    365,063.31x = 117,651,516,660.84
  5. Step 5: Solve for x
    x = 117,651,516,660.84/365,063.31
  6. Step 6: Final answer
    x = 322,277.02

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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.