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Finding the Fourth Proportional to 108,125.70, 149,213.82 and 60,380.82

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Solution

The fourth proportional to 108,125.70, 149,213.82 and 60,380.82 is: 83,325.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,125.70 : 149,213.82 = 60,380.82 : x
  2. Step 2: Convert to fraction form
    108,125.70/149,213.82 = 60,380.82/x
  3. Step 3: Cross multiply
    108,125.70x = 149,213.82 × 60,380.82
  4. Step 4: Simplify right side
    108,125.70x = 9,009,652,806.93
  5. Step 5: Solve for x
    x = 9,009,652,806.93/108,125.70
  6. Step 6: Final answer
    x = 83,325.73

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1.5x scale

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.