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Finding the Fourth Proportional to 144,173.97, 216,266.94 and 49,469.28

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Solution

The fourth proportional to 144,173.97, 216,266.94 and 49,469.28 is: 74,205.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,173.97 : 216,266.94 = 49,469.28 : x
  2. Step 2: Convert to fraction form
    144,173.97/216,266.94 = 49,469.28/x
  3. Step 3: Cross multiply
    144,173.97x = 216,266.94 × 49,469.28
  4. Step 4: Simplify right side
    144,173.97x = 10,698,569,809.60
  5. Step 5: Solve for x
    x = 10,698,569,809.60/144,173.97
  6. Step 6: Final answer
    x = 74,205.97

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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.