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Finding the Fourth Proportional to 144,431.73, 216,603.86 and 39,237.03

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Solution

The fourth proportional to 144,431.73, 216,603.86 and 39,237.03 is: 58,843.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,431.73 : 216,603.86 = 39,237.03 : x
  2. Step 2: Convert to fraction form
    144,431.73/216,603.86 = 39,237.03/x
  3. Step 3: Cross multiply
    144,431.73x = 216,603.86 × 39,237.03
  4. Step 4: Simplify right side
    144,431.73x = 8,498,891,956.75
  5. Step 5: Solve for x
    x = 8,498,891,956.75/144,431.73
  6. Step 6: Final answer
    x = 58,843.66

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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.