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Finding the Fourth Proportional to 85,083.88, 127,541.26 and 40,658.76

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Solution

The fourth proportional to 85,083.88, 127,541.26 and 40,658.76 is: 60,947.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,083.88 : 127,541.26 = 40,658.76 : x
  2. Step 2: Convert to fraction form
    85,083.88/127,541.26 = 40,658.76/x
  3. Step 3: Cross multiply
    85,083.88x = 127,541.26 × 40,658.76
  4. Step 4: Simplify right side
    85,083.88x = 5,185,669,480.44
  5. Step 5: Solve for x
    x = 5,185,669,480.44/85,083.88
  6. Step 6: Final answer
    x = 60,947.73

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1.5x scale

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.