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Finding the Fourth Proportional to 144,489.44, 216,748.74 and 54,509.58

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Solution

The fourth proportional to 144,489.44, 216,748.74 and 54,509.58 is: 81,769.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,489.44 : 216,748.74 = 54,509.58 : x
  2. Step 2: Convert to fraction form
    144,489.44/216,748.74 = 54,509.58/x
  3. Step 3: Cross multiply
    144,489.44x = 216,748.74 × 54,509.58
  4. Step 4: Simplify right side
    144,489.44x = 11,814,882,987.34
  5. Step 5: Solve for x
    x = 11,814,882,987.34/144,489.44
  6. Step 6: Final answer
    x = 81,769.87

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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.