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Finding the Fourth Proportional to 160,190.60, 221,059.12 and 88,568.80

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Solution

The fourth proportional to 160,190.60, 221,059.12 and 88,568.80 is: 122,222.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,190.60 : 221,059.12 = 88,568.80 : x
  2. Step 2: Convert to fraction form
    160,190.60/221,059.12 = 88,568.80/x
  3. Step 3: Cross multiply
    160,190.60x = 221,059.12 × 88,568.80
  4. Step 4: Simplify right side
    160,190.60x = 19,578,940,987.46
  5. Step 5: Solve for x
    x = 19,578,940,987.46/160,190.60
  6. Step 6: Final answer
    x = 122,222.78

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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.