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Finding the Fourth Proportional to 655,421.90, 983,185.90 and 182,107.31

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Solution

The fourth proportional to 655,421.90, 983,185.90 and 182,107.31 is: 273,175.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,421.90 : 983,185.90 = 182,107.31 : x
  2. Step 2: Convert to fraction form
    655,421.90/983,185.90 = 182,107.31/x
  3. Step 3: Cross multiply
    655,421.90x = 983,185.90 × 182,107.31
  4. Step 4: Simplify right side
    655,421.90x = 179,045,334,107.73
  5. Step 5: Solve for x
    x = 179,045,334,107.73/655,421.90
  6. Step 6: Final answer
    x = 273,175.70

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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.