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Finding the Fourth Proportional to 137,316.72, 205,843.32 and 43,761.36

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Solution

The fourth proportional to 137,316.72, 205,843.32 and 43,761.36 is: 65,600.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,316.72 : 205,843.32 = 43,761.36 : x
  2. Step 2: Convert to fraction form
    137,316.72/205,843.32 = 43,761.36/x
  3. Step 3: Cross multiply
    137,316.72x = 205,843.32 × 43,761.36
  4. Step 4: Simplify right side
    137,316.72x = 9,007,983,630.12
  5. Step 5: Solve for x
    x = 9,007,983,630.12/137,316.72
  6. Step 6: Final answer
    x = 65,600.05

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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.