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Finding the Fourth Proportional to 118,682.88, 163,777.44 and 64,966.56

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Solution

The fourth proportional to 118,682.88, 163,777.44 and 64,966.56 is: 89,651.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,682.88 : 163,777.44 = 64,966.56 : x
  2. Step 2: Convert to fraction form
    118,682.88/163,777.44 = 64,966.56/x
  3. Step 3: Cross multiply
    118,682.88x = 163,777.44 × 64,966.56
  4. Step 4: Simplify right side
    118,682.88x = 10,640,056,882.41
  5. Step 5: Solve for x
    x = 10,640,056,882.41/118,682.88
  6. Step 6: Final answer
    x = 89,651.15

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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.