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Finding the Fourth Proportional to 144,321.48, 216,502.20 and 44,489.52

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Solution

The fourth proportional to 144,321.48, 216,502.20 and 44,489.52 is: 66,740.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,321.48 : 216,502.20 = 44,489.52 : x
  2. Step 2: Convert to fraction form
    144,321.48/216,502.20 = 44,489.52/x
  3. Step 3: Cross multiply
    144,321.48x = 216,502.20 × 44,489.52
  4. Step 4: Simplify right side
    144,321.48x = 9,632,078,956.94
  5. Step 5: Solve for x
    x = 9,632,078,956.94/144,321.48
  6. Step 6: Final answer
    x = 66,740.44

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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.