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Finding the Fourth Proportional to 111,664.80, 167,497.20 and 98,542.80

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Solution

The fourth proportional to 111,664.80, 167,497.20 and 98,542.80 is: 147,814.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,664.80 : 167,497.20 = 98,542.80 : x
  2. Step 2: Convert to fraction form
    111,664.80/167,497.20 = 98,542.80/x
  3. Step 3: Cross multiply
    111,664.80x = 167,497.20 × 98,542.80
  4. Step 4: Simplify right side
    111,664.80x = 16,505,643,080.16
  5. Step 5: Solve for x
    x = 16,505,643,080.16/111,664.80
  6. Step 6: Final answer
    x = 147,814.20

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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.