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Finding the Fourth Proportional to 144,308.72, 216,491.43 and 44,451.92

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Solution

The fourth proportional to 144,308.72, 216,491.43 and 44,451.92 is: 66,686.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,308.72 : 216,491.43 = 44,451.92 : x
  2. Step 2: Convert to fraction form
    144,308.72/216,491.43 = 44,451.92/x
  3. Step 3: Cross multiply
    144,308.72x = 216,491.43 × 44,451.92
  4. Step 4: Simplify right side
    144,308.72x = 9,623,459,727.05
  5. Step 5: Solve for x
    x = 9,623,459,727.05/144,308.72
  6. Step 6: Final answer
    x = 66,686.61

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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.