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Finding the Fourth Proportional to 101,287.20, 151,930.80 and 95,455.20

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Solution

The fourth proportional to 101,287.20, 151,930.80 and 95,455.20 is: 143,182.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,287.20 : 151,930.80 = 95,455.20 : x
  2. Step 2: Convert to fraction form
    101,287.20/151,930.80 = 95,455.20/x
  3. Step 3: Cross multiply
    101,287.20x = 151,930.80 × 95,455.20
  4. Step 4: Simplify right side
    101,287.20x = 14,502,584,900.16
  5. Step 5: Solve for x
    x = 14,502,584,900.16/101,287.20
  6. Step 6: Final answer
    x = 143,182.80

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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.