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Finding the Fourth Proportional to 118,611.37, 163,682.31 and 64,895.77

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Solution

The fourth proportional to 118,611.37, 163,682.31 and 64,895.77 is: 89,555.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,611.37 : 163,682.31 = 64,895.77 : x
  2. Step 2: Convert to fraction form
    118,611.37/163,682.31 = 64,895.77/x
  3. Step 3: Cross multiply
    118,611.37x = 163,682.31 × 64,895.77
  4. Step 4: Simplify right side
    118,611.37x = 10,622,289,542.83
  5. Step 5: Solve for x
    x = 10,622,289,542.83/118,611.37
  6. Step 6: Final answer
    x = 89,555.41

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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.