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Finding the Fourth Proportional to 331,250.31, 496,954.74 and 106,631.74

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Solution

The fourth proportional to 331,250.31, 496,954.74 and 106,631.74 is: 159,973.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,250.31 : 496,954.74 = 106,631.74 : x
  2. Step 2: Convert to fraction form
    331,250.31/496,954.74 = 106,631.74/x
  3. Step 3: Cross multiply
    331,250.31x = 496,954.74 × 106,631.74
  4. Step 4: Simplify right side
    331,250.31x = 52,991,149,648.51
  5. Step 5: Solve for x
    x = 52,991,149,648.51/331,250.31
  6. Step 6: Final answer
    x = 159,973.13

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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.