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Finding the Fourth Proportional to 331,246.88, 496,870.47 and 106,607.28

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Solution

The fourth proportional to 331,246.88, 496,870.47 and 106,607.28 is: 159,910.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,246.88 : 496,870.47 = 106,607.28 : x
  2. Step 2: Convert to fraction form
    331,246.88/496,870.47 = 106,607.28/x
  3. Step 3: Cross multiply
    331,246.88x = 496,870.47 × 106,607.28
  4. Step 4: Simplify right side
    331,246.88x = 52,970,009,319.02
  5. Step 5: Solve for x
    x = 52,970,009,319.02/331,246.88
  6. Step 6: Final answer
    x = 159,910.97

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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.