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Finding the Fourth Proportional to 134,149.63, 185,122.76 and 73,720.25

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Solution

The fourth proportional to 134,149.63, 185,122.76 and 73,720.25 is: 101,731.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,149.63 : 185,122.76 = 73,720.25 : x
  2. Step 2: Convert to fraction form
    134,149.63/185,122.76 = 73,720.25/x
  3. Step 3: Cross multiply
    134,149.63x = 185,122.76 × 73,720.25
  4. Step 4: Simplify right side
    134,149.63x = 13,647,296,242.10
  5. Step 5: Solve for x
    x = 13,647,296,242.10/134,149.63
  6. Step 6: Final answer
    x = 101,731.90

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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.