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Finding the Fourth Proportional to 144,336.53, 216,447.39 and 55,540.69

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Solution

The fourth proportional to 144,336.53, 216,447.39 and 55,540.69 is: 83,288.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,336.53 : 216,447.39 = 55,540.69 : x
  2. Step 2: Convert to fraction form
    144,336.53/216,447.39 = 55,540.69/x
  3. Step 3: Cross multiply
    144,336.53x = 216,447.39 × 55,540.69
  4. Step 4: Simplify right side
    144,336.53x = 12,021,636,848.18
  5. Step 5: Solve for x
    x = 12,021,636,848.18/144,336.53
  6. Step 6: Final answer
    x = 83,288.94

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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.