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Finding the Fourth Proportional to 74,729.88, 111,836.16 and 46,254.96

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Solution

The fourth proportional to 74,729.88, 111,836.16 and 46,254.96 is: 69,222.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,729.88 : 111,836.16 = 46,254.96 : x
  2. Step 2: Convert to fraction form
    74,729.88/111,836.16 = 46,254.96/x
  3. Step 3: Cross multiply
    74,729.88x = 111,836.16 × 46,254.96
  4. Step 4: Simplify right side
    74,729.88x = 5,172,977,107.35
  5. Step 5: Solve for x
    x = 5,172,977,107.35/74,729.88
  6. Step 6: Final answer
    x = 69,222.34

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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.