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Finding the Fourth Proportional to 96,520.98, 144,621.45 and 68,301.21

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Solution

The fourth proportional to 96,520.98, 144,621.45 and 68,301.21 is: 102,338.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,520.98 : 144,621.45 = 68,301.21 : x
  2. Step 2: Convert to fraction form
    96,520.98/144,621.45 = 68,301.21/x
  3. Step 3: Cross multiply
    96,520.98x = 144,621.45 × 68,301.21
  4. Step 4: Simplify right side
    96,520.98x = 9,877,820,026.95
  5. Step 5: Solve for x
    x = 9,877,820,026.95/96,520.98
  6. Step 6: Final answer
    x = 102,338.58

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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.