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Finding the Fourth Proportional to 75,291.88, 103,890.98 and 43,454.84

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Solution

The fourth proportional to 75,291.88, 103,890.98 and 43,454.84 is: 59,960.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,291.88 : 103,890.98 = 43,454.84 : x
  2. Step 2: Convert to fraction form
    75,291.88/103,890.98 = 43,454.84/x
  3. Step 3: Cross multiply
    75,291.88x = 103,890.98 × 43,454.84
  4. Step 4: Simplify right side
    75,291.88x = 4,514,565,913.34
  5. Step 5: Solve for x
    x = 4,514,565,913.34/75,291.88
  6. Step 6: Final answer
    x = 59,960.86

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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.