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Finding the Fourth Proportional to 137,555.52, 206,300.44 and 70,961.37

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Solution

The fourth proportional to 137,555.52, 206,300.44 and 70,961.37 is: 106,425.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,555.52 : 206,300.44 = 70,961.37 : x
  2. Step 2: Convert to fraction form
    137,555.52/206,300.44 = 70,961.37/x
  3. Step 3: Cross multiply
    137,555.52x = 206,300.44 × 70,961.37
  4. Step 4: Simplify right side
    137,555.52x = 14,639,361,854.00
  5. Step 5: Solve for x
    x = 14,639,361,854.00/137,555.52
  6. Step 6: Final answer
    x = 106,425.11

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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.