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Finding the Fourth Proportional to 453,486.15, 679,993.92 and 133,596.50

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Solution

The fourth proportional to 453,486.15, 679,993.92 and 133,596.50 is: 200,325.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,486.15 : 679,993.92 = 133,596.50 : x
  2. Step 2: Convert to fraction form
    453,486.15/679,993.92 = 133,596.50/x
  3. Step 3: Cross multiply
    453,486.15x = 679,993.92 × 133,596.50
  4. Step 4: Simplify right side
    453,486.15x = 90,844,804,333.31
  5. Step 5: Solve for x
    x = 90,844,804,333.31/453,486.15
  6. Step 6: Final answer
    x = 200,325.42

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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.