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Finding the Fourth Proportional to 144,571.84, 216,691.36 and 55,786.08

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Solution

The fourth proportional to 144,571.84, 216,691.36 and 55,786.08 is: 83,614.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,571.84 : 216,691.36 = 55,786.08 : x
  2. Step 2: Convert to fraction form
    144,571.84/216,691.36 = 55,786.08/x
  3. Step 3: Cross multiply
    144,571.84x = 216,691.36 × 55,786.08
  4. Step 4: Simplify right side
    144,571.84x = 12,088,361,544.27
  5. Step 5: Solve for x
    x = 12,088,361,544.27/144,571.84
  6. Step 6: Final answer
    x = 83,614.91

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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.