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Finding the Fourth Proportional to 144,710.44, 217,127.46 and 74,638.96

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Solution

The fourth proportional to 144,710.44, 217,127.46 and 74,638.96 is: 111,990.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,710.44 : 217,127.46 = 74,638.96 : x
  2. Step 2: Convert to fraction form
    144,710.44/217,127.46 = 74,638.96/x
  3. Step 3: Cross multiply
    144,710.44x = 217,127.46 × 74,638.96
  4. Step 4: Simplify right side
    144,710.44x = 16,206,167,801.84
  5. Step 5: Solve for x
    x = 16,206,167,801.84/144,710.44
  6. Step 6: Final answer
    x = 111,990.32

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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.