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Finding the Fourth Proportional to 75,293.88, 103,893.74 and 43,456.84

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Solution

The fourth proportional to 75,293.88, 103,893.74 and 43,456.84 is: 59,963.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,293.88 : 103,893.74 = 43,456.84 : x
  2. Step 2: Convert to fraction form
    75,293.88/103,893.74 = 43,456.84/x
  3. Step 3: Cross multiply
    75,293.88x = 103,893.74 × 43,456.84
  4. Step 4: Simplify right side
    75,293.88x = 4,514,893,636.18
  5. Step 5: Solve for x
    x = 4,514,893,636.18/75,293.88
  6. Step 6: Final answer
    x = 59,963.62

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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.