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Finding the Fourth Proportional to 453,485.65, 679,993.17 and 133,596.01

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Solution

The fourth proportional to 453,485.65, 679,993.17 and 133,596.01 is: 200,324.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,485.65 : 679,993.17 = 133,596.01 : x
  2. Step 2: Convert to fraction form
    453,485.65/679,993.17 = 133,596.01/x
  3. Step 3: Cross multiply
    453,485.65x = 679,993.17 × 133,596.01
  4. Step 4: Simplify right side
    453,485.65x = 90,844,374,339.25
  5. Step 5: Solve for x
    x = 90,844,374,339.25/453,485.65
  6. Step 6: Final answer
    x = 200,324.69

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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.