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Finding the Fourth Proportional to 144,801.24, 216,906.24 and 74,532.96

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Solution

The fourth proportional to 144,801.24, 216,906.24 and 74,532.96 is: 111,647.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,801.24 : 216,906.24 = 74,532.96 : x
  2. Step 2: Convert to fraction form
    144,801.24/216,906.24 = 74,532.96/x
  3. Step 3: Cross multiply
    144,801.24x = 216,906.24 × 74,532.96
  4. Step 4: Simplify right side
    144,801.24x = 16,166,664,109.67
  5. Step 5: Solve for x
    x = 16,166,664,109.67/144,801.24
  6. Step 6: Final answer
    x = 111,647.28

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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.