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Finding the Fourth Proportional to 68,675.40, 102,818.52 and 43,653.24

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Solution

The fourth proportional to 68,675.40, 102,818.52 and 43,653.24 is: 65,356.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,675.40 : 102,818.52 = 43,653.24 : x
  2. Step 2: Convert to fraction form
    68,675.40/102,818.52 = 43,653.24/x
  3. Step 3: Cross multiply
    68,675.40x = 102,818.52 × 43,653.24
  4. Step 4: Simplify right side
    68,675.40x = 4,488,361,530.00
  5. Step 5: Solve for x
    x = 4,488,361,530.00/68,675.40
  6. Step 6: Final answer
    x = 65,356.18

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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.