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Finding the Fourth Proportional to 144,644.76, 216,990.54 and 44,781.48

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Solution

The fourth proportional to 144,644.76, 216,990.54 and 44,781.48 is: 67,179.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,644.76 : 216,990.54 = 44,781.48 : x
  2. Step 2: Convert to fraction form
    144,644.76/216,990.54 = 44,781.48/x
  3. Step 3: Cross multiply
    144,644.76x = 216,990.54 × 44,781.48
  4. Step 4: Simplify right side
    144,644.76x = 9,717,157,527.20
  5. Step 5: Solve for x
    x = 9,717,157,527.20/144,644.76
  6. Step 6: Final answer
    x = 67,179.46

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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.