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Finding the Fourth Proportional to 262,379.90, 362,073.84 and 154,984.43

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Solution

The fourth proportional to 262,379.90, 362,073.84 and 154,984.43 is: 213,872.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,379.90 : 362,073.84 = 154,984.43 : x
  2. Step 2: Convert to fraction form
    262,379.90/362,073.84 = 154,984.43/x
  3. Step 3: Cross multiply
    262,379.90x = 362,073.84 × 154,984.43
  4. Step 4: Simplify right side
    262,379.90x = 56,115,807,710.31
  5. Step 5: Solve for x
    x = 56,115,807,710.31/262,379.90
  6. Step 6: Final answer
    x = 213,872.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.