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Finding the Fourth Proportional to 96,599.90, 144,712.20 and 54,351.15

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Solution

The fourth proportional to 96,599.90, 144,712.20 and 54,351.15 is: 81,421.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,599.90 : 144,712.20 = 54,351.15 : x
  2. Step 2: Convert to fraction form
    96,599.90/144,712.20 = 54,351.15/x
  3. Step 3: Cross multiply
    96,599.90x = 144,712.20 × 54,351.15
  4. Step 4: Simplify right side
    96,599.90x = 7,865,274,489.03
  5. Step 5: Solve for x
    x = 7,865,274,489.03/96,599.90
  6. Step 6: Final answer
    x = 81,421.15

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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.