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Finding the Fourth Proportional to 74,759.54, 111,978.51 and 35,257.46

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Solution

The fourth proportional to 74,759.54, 111,978.51 and 35,257.46 is: 52,810.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,759.54 : 111,978.51 = 35,257.46 : x
  2. Step 2: Convert to fraction form
    74,759.54/111,978.51 = 35,257.46/x
  3. Step 3: Cross multiply
    74,759.54x = 111,978.51 × 35,257.46
  4. Step 4: Simplify right side
    74,759.54x = 3,948,077,837.18
  5. Step 5: Solve for x
    x = 3,948,077,837.18/74,759.54
  6. Step 6: Final answer
    x = 52,810.35

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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.