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Finding the Fourth Proportional to 108,644.72, 149,930.03 and 60,250.05

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Solution

The fourth proportional to 108,644.72, 149,930.03 and 60,250.05 is: 83,145.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,644.72 : 149,930.03 = 60,250.05 : x
  2. Step 2: Convert to fraction form
    108,644.72/149,930.03 = 60,250.05/x
  3. Step 3: Cross multiply
    108,644.72x = 149,930.03 × 60,250.05
  4. Step 4: Simplify right side
    108,644.72x = 9,033,291,502.75
  5. Step 5: Solve for x
    x = 9,033,291,502.75/108,644.72
  6. Step 6: Final answer
    x = 83,145.25

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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.