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Finding the Fourth Proportional to 84,797.60, 127,196.26 and 66,091.66

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Solution

The fourth proportional to 84,797.60, 127,196.26 and 66,091.66 is: 99,137.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,797.60 : 127,196.26 = 66,091.66 : x
  2. Step 2: Convert to fraction form
    84,797.60/127,196.26 = 66,091.66/x
  3. Step 3: Cross multiply
    84,797.60x = 127,196.26 × 66,091.66
  4. Step 4: Simplify right side
    84,797.60x = 8,406,611,485.97
  5. Step 5: Solve for x
    x = 8,406,611,485.97/84,797.60
  6. Step 6: Final answer
    x = 99,137.38

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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.