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Finding the Fourth Proportional to 241,961.94, 333,812.98 and 138,540.87

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Solution

The fourth proportional to 241,961.94, 333,812.98 and 138,540.87 is: 191,132.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,961.94 : 333,812.98 = 138,540.87 : x
  2. Step 2: Convert to fraction form
    241,961.94/333,812.98 = 138,540.87/x
  3. Step 3: Cross multiply
    241,961.94x = 333,812.98 × 138,540.87
  4. Step 4: Simplify right side
    241,961.94x = 46,246,740,060.38
  5. Step 5: Solve for x
    x = 46,246,740,060.38/241,961.94
  6. Step 6: Final answer
    x = 191,132.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.