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Finding the Fourth Proportional to 137,453.44, 206,206.08 and 54,353.92

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Solution

The fourth proportional to 137,453.44, 206,206.08 and 54,353.92 is: 81,541.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,453.44 : 206,206.08 = 54,353.92 : x
  2. Step 2: Convert to fraction form
    137,453.44/206,206.08 = 54,353.92/x
  3. Step 3: Cross multiply
    137,453.44x = 206,206.08 × 54,353.92
  4. Step 4: Simplify right side
    137,453.44x = 11,208,108,775.83
  5. Step 5: Solve for x
    x = 11,208,108,775.83/137,453.44
  6. Step 6: Final answer
    x = 81,541.13

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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.