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Finding the Fourth Proportional to 111,745.78, 167,507.95 and 52,475.35

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Solution

The fourth proportional to 111,745.78, 167,507.95 and 52,475.35 is: 78,661.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,745.78 : 167,507.95 = 52,475.35 : x
  2. Step 2: Convert to fraction form
    111,745.78/167,507.95 = 52,475.35/x
  3. Step 3: Cross multiply
    111,745.78x = 167,507.95 × 52,475.35
  4. Step 4: Simplify right side
    111,745.78x = 8,790,038,304.03
  5. Step 5: Solve for x
    x = 8,790,038,304.03/111,745.78
  6. Step 6: Final answer
    x = 78,661.03

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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.