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Finding the Fourth Proportional to 156,687.31, 235,000.90 and 44,340.40

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Solution

The fourth proportional to 156,687.31, 235,000.90 and 44,340.40 is: 66,502.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,687.31 : 235,000.90 = 44,340.40 : x
  2. Step 2: Convert to fraction form
    156,687.31/235,000.90 = 44,340.40/x
  3. Step 3: Cross multiply
    156,687.31x = 235,000.90 × 44,340.40
  4. Step 4: Simplify right side
    156,687.31x = 10,420,033,906.36
  5. Step 5: Solve for x
    x = 10,420,033,906.36/156,687.31
  6. Step 6: Final answer
    x = 66,502.09

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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.