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Finding the Fourth Proportional to 96,539.80, 144,939.30 and 61,634.20

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Solution

The fourth proportional to 96,539.80, 144,939.30 and 61,634.20 is: 92,534.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,539.80 : 144,939.30 = 61,634.20 : x
  2. Step 2: Convert to fraction form
    96,539.80/144,939.30 = 61,634.20/x
  3. Step 3: Cross multiply
    96,539.80x = 144,939.30 × 61,634.20
  4. Step 4: Simplify right side
    96,539.80x = 8,933,217,804.06
  5. Step 5: Solve for x
    x = 8,933,217,804.06/96,539.80
  6. Step 6: Final answer
    x = 92,534.04

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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.