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Finding the Fourth Proportional to 111,807.20, 167,419.20 and 88,284.80

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Solution

The fourth proportional to 111,807.20, 167,419.20 and 88,284.80 is: 132,196.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,807.20 : 167,419.20 = 88,284.80 : x
  2. Step 2: Convert to fraction form
    111,807.20/167,419.20 = 88,284.80/x
  3. Step 3: Cross multiply
    111,807.20x = 167,419.20 × 88,284.80
  4. Step 4: Simplify right side
    111,807.20x = 14,780,570,588.16
  5. Step 5: Solve for x
    x = 14,780,570,588.16/111,807.20
  6. Step 6: Final answer
    x = 132,196.95

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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.