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Finding the Fourth Proportional to 85,605.98, 118,163.66 and 60,118.52

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Solution

The fourth proportional to 85,605.98, 118,163.66 and 60,118.52 is: 82,982.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,605.98 : 118,163.66 = 60,118.52 : x
  2. Step 2: Convert to fraction form
    85,605.98/118,163.66 = 60,118.52/x
  3. Step 3: Cross multiply
    85,605.98x = 118,163.66 × 60,118.52
  4. Step 4: Simplify right side
    85,605.98x = 7,103,823,465.57
  5. Step 5: Solve for x
    x = 7,103,823,465.57/85,605.98
  6. Step 6: Final answer
    x = 82,982.80

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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.