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Finding the Fourth Proportional to 453,137.16, 679,661.66 and 137,596.80

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Solution

The fourth proportional to 453,137.16, 679,661.66 and 137,596.80 is: 206,381.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,137.16 : 679,661.66 = 137,596.80 : x
  2. Step 2: Convert to fraction form
    453,137.16/679,661.66 = 137,596.80/x
  3. Step 3: Cross multiply
    453,137.16x = 679,661.66 × 137,596.80
  4. Step 4: Simplify right side
    453,137.16x = 93,519,269,498.69
  5. Step 5: Solve for x
    x = 93,519,269,498.69/453,137.16
  6. Step 6: Final answer
    x = 206,381.81

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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.