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Finding the Fourth Proportional to 85,163.50, 117,525.63 and 47,436.94

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Solution

The fourth proportional to 85,163.50, 117,525.63 and 47,436.94 is: 65,462.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,163.50 : 117,525.63 = 47,436.94 : x
  2. Step 2: Convert to fraction form
    85,163.50/117,525.63 = 47,436.94/x
  3. Step 3: Cross multiply
    85,163.50x = 117,525.63 × 47,436.94
  4. Step 4: Simplify right side
    85,163.50x = 5,575,056,258.77
  5. Step 5: Solve for x
    x = 5,575,056,258.77/85,163.50
  6. Step 6: Final answer
    x = 65,462.98

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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.