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Finding the Fourth Proportional to 75,392.17, 112,915.99 and 35,976.96

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Solution

The fourth proportional to 75,392.17, 112,915.99 and 35,976.96 is: 53,883.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,392.17 : 112,915.99 = 35,976.96 : x
  2. Step 2: Convert to fraction form
    75,392.17/112,915.99 = 35,976.96/x
  3. Step 3: Cross multiply
    75,392.17x = 112,915.99 × 35,976.96
  4. Step 4: Simplify right side
    75,392.17x = 4,062,374,100.56
  5. Step 5: Solve for x
    x = 4,062,374,100.56/75,392.17
  6. Step 6: Final answer
    x = 53,883.24

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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.